|
INVESTIGATIONS
|
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Location |
Info |
ne min |
ne max |
no min |
no max |
Spectrum |
UVS |
UVL |
Reference |
|
Tourmaline |
1,61 |
1,638 |
0,02 |
0,021 |
|
|
green, color-zoned |
Makuki, Kenya |
usumbara effect, Cr- and
V-bearing |
1,610 |
1,617 |
1,630 |
1,638 |
|
|
|
The Journal of Gemmology
2015 Vol 34, No.6, p476-477 |
|
Uvite |
1,61 |
1,628 |
0,018 |
0,018 |
3,04 |
3,04 |
green |
Brumado, Brazil |
chelsea : red |
|
|
|
|
Cr lines difficult to
discern |
|
|
The Journal of Gemmology
1998 Vol 26, N°4, p232 |
|
Dravite |
1,611 |
1,64 |
0,025 |
0,025 |
2,995 |
3,022 |
dark brown |
Jajarkot, Nepal |
|
1,611 |
1,615 |
1,636 |
1,640 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1993 Sep, p73 |
|
Dravite |
1,612 |
1,632 |
0,02 |
0,02 |
3,02 |
3,02 |
orangy yellow |
Cabo Delgado Province,
Mozambique |
1.67ct |
|
|
|
|
weak band at 500 nm |
weak yellow |
inert |
Gems & Gemology 2007
Spring, p74 |
|
Elbaite - Cu-bearing |
1,615 |
1,644 |
0,018 |
0,021 |
3,05 |
3,11 |
light green, yellow, gold
yellow, greyish blue, greyish violet, orange-red, colour-change:
amethyst-coloured to blue under incandescent light |
Paraiba, Brazil |
|
1,615 |
1,626 |
1,635 |
1,644 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2003 Mar, p25-30 |
|
Elbaite - Cu-bearing |
1,615 |
1,64 |
0,017 |
0,02 |
3,04 |
3,07 |
bright blue |
Salgadinho, Paraiba,
Brazil |
|
1,615 |
1,620 |
1,632 |
1,640 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1990 Apr, p3-11 |
|
Tourmaline |
1,615 |
1,638 |
0,023 |
0,023 |
3,09 |
3,09 |
greenish brown |
Sri Lanka |
2.1ct |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1998 Sep, p169 |
|
Tourmaline |
1,615 |
1,633 |
0,018 |
0,018 |
3,02 |
3,02 |
colourless |
Afghanistan |
|
|
|
|
|
|
|
|
The Journal of Gemmology
1974 N°4, p173-174 |
|
Elbaite |
1,616 |
1,63 |
0,014 |
0,014 |
3,02 |
3,02 |
red-purple |
Conselheiro Pena, Minas
Gerais, Brazil |
13.27ct |
|
|
|
|
broad absorption below
420nm and from 510-560nm; line at 450nm |
inert |
inert |
GIA Gem Database 34310 |
|
Elbaite |
1,616 |
1,645 |
0,013 |
0,022 |
3,03 |
3,09 |
pink |
Nigeria |
|
1,616 |
1,628 |
1,632 |
1,645 |
|
inert |
inert |
The Journal of Gemmology
2021 Vol 37, N°5, p514-526 |
|
Tourmaline |
1,617 |
1,637 |
0,02 |
0,02 |
|
|
greenish blue |
Landanai, Tanzania |
|
|
|
|
|
|
|
|
Revue de Gemmologie A.F.G. 2006 n°157, p4-7 |
|
Elbaite |
1,618 |
1,642 |
0,02 |
0,02 |
3,04 |
3,1 |
green |
Virunga Region, Kivu,
Congo |
|
1,618 |
1,622 |
1,638 |
1,642 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2010 59/3-4, p111-113 |
|
Elbaite |
1,618 |
1,638 |
0,02 |
0,02 |
3,07 |
3,07 |
blue and red-orange |
Karibib, Erongo Region,
Namibia |
5.57ct |
|
|
|
|
red-orange: broad
absorption below 420nm and above 680nm, line at 450nm |
inert |
inert |
GIA Gem Database 34239 |
|
Elbaite - Cu-bearing |
1,618 |
1,642 |
|
|
3,01 |
3,05 |
pink, zoned yellow and
pink, zoned greenish yellow and pink |
Akwandoka, Keffi, Nigeria |
New find 2008 |
|
|
|
|
|
moderate chalky blue |
inert |
Gems & Gemology 2009
Fall, p227-228 |
|
Elbaite - Cu-bearing |
1,618 |
1,642 |
0,018 |
0,021 |
3,04 |
3,13 |
green, blue, violet-blue |
Brazil (Batalha, Mulungu
and Alto dos Quintos), Nigeria (Edeko), Mozambique (Alto Ligonha) |
|
1,618 |
1,621 |
1,638 |
1,642 |
|
|
|
Gems & Gemology 2006
Spring p4-21 |
|
Elbaite - Cu-bearing |
1,618 |
1,64 |
0,018 |
0,021 |
3,06 |
3,1 |
green, violet, blue |
Glorious mine, Junco do
Serido, Paraiba, Brazil |
|
1,618 |
1,620 |
1,638 |
1,640 |
|
inert |
inert |
Gems & Gemology 2007
fall, p236 |
|
Elbaite - Cu-bearing |
1,618 |
1,64 |
0,019 |
0,02 |
3,04 |
3,05 |
green, green-blue, pink
to red |
Mozambique |
|
1,618 |
1,620 |
1,637 |
1,640 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1997 Mar, p50-52 |
|
Elbaite - Cu-bearing |
1,618 |
1,64 |
0,018 |
0,02 |
3,04 |
3,09 |
violet, pink, purple,
blue, greenish blue, yellowish green, green, bicoloured, tricoloured |
Mozambique |
|
1,618 |
1,620 |
1,638 |
1,640 |
|
inert |
inert |
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2006 Jun, p5-24 |
|
Elbaite - Cu-bearing |
1,618 |
1,639 |
0,019 |
0,021 |
3,08 |
3,1 |
|
Mulungu mine, Rio Grande
do Norte, Brazil |
|
1,618 |
1,619 |
1,638 |
1,639 |
|
inert |
inert |
Gems & Gemology 2001
winter p270 |
|
Elbaite - Cu-bearing |
1,618 |
1,64 |
0,02 |
0,02 |
3,04 |
3,08 |
violet, blue, blue-green,
bluish violet, reddish violet |
Nigeria |
|
1,618 |
1,620 |
1,638 |
1,640 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2001 Dec, p217-223 |
|
Elbaite - Cu-bearing |
1,618 |
1,64 |
0,018 |
0,02 |
3,04 |
3,1 |
bright blue, green,
greenish-blue |
Quintos de Baixo, Rio
Grande do Norte, Brazil |
60 ex |
1,618 |
1,620 |
1,638 |
1,640 |
|
inert |
inert |
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2005 Sep, p73-84 |
|
Elbaite - Cu-bearing |
1,618 |
1,646 |
0,018 |
0,025 |
3,03 |
3,12 |
yellowish green, greenish
grey, purple-pink, purple, bluish purple, blue, violetish blue, bluish green,
turquoise, green |
Sao José da Batalha,
Paraiba, Brazil |
|
1,618 |
1,621 |
1,638 |
1,646 |
|
inert |
inert |
Gems & Gemology 1990
fall, p189-205 |
|
Tourmaline |
1,618 |
1,638 |
0,018 |
0,02 |
3,04 |
3,07 |
greenish brown, dark
green |
Elahera, Sri Lanka |
|
|
|
|
|
cut-off 530nm |
inert |
inert |
Gems & Gemology 1986
Summer, p91 |
|
Tourmaline |
1,618 |
1,64 |
0,02 |
0,02 |
3,04 |
3,07 |
yellowish brown to brown |
Tunduru-Songea region,
Tanzania |
dravite and uvite |
1,618 |
1,620 |
1,638 |
1,640 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1997 Mar, p39-41 |
|
Dravite |
1,619 |
1,637 |
0,018 |
0,018 |
3,06 |
3,06 |
dark yellowish green |
Taita Hills, Taita-Taveta
district), Coast Province, Kenya |
13.31ct |
|
|
|
|
broad absorption below
420nm and above 680nm |
inert |
weak yellow |
GIA Gem Database 35039 |
|
Elbaite |
1,619 |
1,639 |
0,018 |
0,019 |
3,05 |
3,08 |
pink |
Luc Yen, Vietnam |
|
1,619 |
1,621 |
1,638 |
1,639 |
|
inert |
inert |
Gems & Gemology 2012
Fall, p169 |
|
Elbaite |
1,619 |
1,641 |
0,02 |
0,02 |
3,04 |
3,07 |
yellowish green to light
to dark green, pinkish green, pink, pinkish red, pink-violet |
Rwanda |
|
1,619 |
1,621 |
1,639 |
1,641 |
|
|
|
The Journal of Gemmology
2014 Vol 34, N°4, p 344-349 |
|
Elbaite - Cu-bearing |
1,619 |
1,643 |
0,018 |
0,021 |
3,01 |
3,09 |
violet, purple, green,
blue, |
Mavuco, Mozambique |
|
1,619 |
1,622 |
1,638 |
1,643 |
|
|
|
Gems & Gemology 2008
spring p 5-30 |
|
Elbaite - Cu-bearing |
1,619 |
1,646 |
0,018 |
0,025 |
3,03 |
3,12 |
|
Mina da Batalha, Paraiba,
Brazil |
|
1,619 |
1,621 |
1,638 |
1,646 |
|
inert |
inert |
Gems & Gemology 2001
winter p270 |
|
Elbaite - Cu-bearing |
1,619 |
1,64 |
0,018 |
0,02 |
3,04 |
3,08 |
|
Mt Mica, Maine, USA |
|
1,619 |
1,622 |
1,638 |
1,640 |
|
inert |
inert |
Gems & Gemology 2005
summer, p150-163 |
|
Liddicoatite |
1,619 |
1,651 |
0,014 |
0,027 |
3,05 |
3,11 |
red, violetish red, pink,
pinkish yellow, colourless, violet, green, brown, pale blue, yellow |
Anjanabonoina, Madagascar |
liddicoatite-elbaite,
transparent to translucent |
1,619 |
1,634 |
1,635 |
1,651 |
|
inert to moderate
greenish yellow to golden yellow |
inert |
Gems & Gemology 2002
Spring p28-53 |
|
Tourmaline |
1,619 |
1,65 |
0,02 |
0,023 |
3,04 |
3,05 |
greenish yellow or yellow
to brownish yellow |
Kenya |
=dravite-uvite |
1,619 |
1,630 |
1,642 |
1,650 |
|
|
|
Gems & Gemology 2007
winter , p324 |
|
Tourmaline |
1,619 |
1,639 |
0,014 |
0,02 |
3,04 |
3,055 |
purplish pink to red
purple to orangy red, yellowish green to greenish yellow, pink and yellowish green,
multicoloured |
Lundazi, Zambia |
|
1,619 |
1,620 |
1,637 |
1,639 |
|
inert |
inert |
Gems & Gemology 1997
Fall, p204-211 |
|
Tourmaline |
1,619 |
1,642 |
0,018 |
0,02 |
3,04 |
3,07 |
red |
Nigeria |
|
1,619 |
1,622 |
1,637 |
1,642 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2001 Dec, p225-228 |
|
Tourmaline |
1,619 |
1,641 |
0,014 |
0,02 |
3,04 |
3,09 |
green, yellow-green,
greenish-blue, pink, purplish-red |
Dunton Gem Quarry, Newry,
Oxford County, Maine |
|
1,619 |
1,621 |
1,634 |
1,641 |
|
faint to moderate chalky
blue |
|
Gems & Gemology 1975
Spring, p19-24 |
|
Tourmaline |
1,619 |
1,637 |
0,018 |
0,018 |
0 |
0 |
light pink |
Nepal |
5.48ct |
|
|
|
|
|
moderate chalky violetish
blue |
very slight suggestion of
a blue |
Gems & Gemology 1988
Spring, p51-52 |
|
Tourmaline |
1,619 |
1,64 |
0,021 |
0,021 |
3,18 |
3,18 |
very strongly
greenish-blue |
|
1.21ct |
|
|
|
|
|
inert |
inert |
http://www.spec4gem.info/index.php
2016 |
|
Tourmaline |
1,619 |
1,642 |
0,022 |
0,022 |
3,044 |
3,044 |
golden yellow |
Kenya |
dravite-uvite ratio 80:20 |
|
|
|
|
|
medium strong yellow |
inert |
The Journal of Gemmology
1981 N°7 p437-442 |
|
Uvite |
1,619 |
1,648 |
0,016 |
0,021 |
2,85 |
3,244 |
brown |
Elahera, Sri Lanka |
|
1,619 |
1,631 |
1,635 |
1,648 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1985 34, Nr3/4, p98-100 |
|
Dravite |
1,62 |
1,64 |
0,02 |
0,02 |
3,04 |
3,06 |
dark brownish green to
dark grayish green |
Cabo Delgado Province,
Mozambique |
2.43 - 4.37 ct |
|
|
|
|
absorption band at 500 nm |
inert |
inert |
Gems & Gemology 2007
Spring, p74 |
|
Dravite |
1,62 |
1,639 |
0,019 |
0,019 |
|
|
slightly orangey yellow |
Tanzania |
11.13ct |
|
|
|
|
|
|
|
The Journal of Gemmology
2016 35 (3), p 190-192 |
|
Dravite |
1,62 |
1,638 |
0,018 |
0,018 |
3,04 |
3,04 |
dark yellowish orange |
Mozambique |
31.21ct |
|
|
|
|
broad absorption below
440nm and from 500-540nm, lines at 450, 459, 538nm |
inert |
inert |
GIA Gem Database 33635 |
|
Dravite |
1,62 |
1,638 |
0,018 |
0,018 |
3,06 |
3,06 |
deep green |
Simanjiro district,
Tanzania |
1.09ct, red under Chelsea
filter |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology
2017 Vol35, N°6, p481-482 |
|
Elbaite |
1,62 |
1,649 |
0,017 |
0,024 |
2,989 |
3,143 |
green, pink, brownish
green, brown |
Hyakule, Nepal |
|
1,620 |
1,627 |
1,638 |
1,649 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1993 Sep, p73 |
|
Elbaite |
1,62 |
1,646 |
0,02 |
0,023 |
3,065 |
3,097 |
yellow, yellow-brown |
Naje, Nepal |
|
1,620 |
1,623 |
1,640 |
1,646 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1993 Sep, p73 |
|
Elbaite |
1,62 |
1,64 |
0,02 |
0,02 |
3,16 |
3,16 |
very dark red |
Teofilo Otoni, Minas
Gerais, Brazil |
8.01ct |
|
|
|
|
broad absorption below
450nm and from 520-570nm |
inert |
inert |
GIA Gem Database 33606 |
|
Elbaite |
1,62 |
1,64 |
0,02 |
0,02 |
3,04 |
3,04 |
yellowish orange |
Embu, Eastern Province,
Kenya |
3.36ct |
|
|
|
|
broad absorption below
430nm and above 670nm |
inert |
medium orange-yellow |
GIA Gem Database 34379 |
|
Elbaite |
1,62 |
1,637 |
0,017 |
0,017 |
3,05 |
3,05 |
yellow-green and yellow |
Nacala, Nampula Province,
Mozambique |
31.48ct |
|
|
|
|
broad absorption below
430nm |
inert |
inert |
GIA Gem Database 34229 |
|
Elbaite |
1,62 |
1,64 |
0,02 |
0,02 |
2,95 |
2,95 |
green |
Neu Schwaben Mine,
Karibib, Erongo Region, Namibia |
10.00ct |
|
|
|
|
broad absorption below
420nm and above 650nm, line at 497nm |
inert |
inert |
GIA Gem Database 34726 |
|
Elbaite |
1,62 |
1,642 |
0,022 |
0,022 |
3,11 |
3,11 |
yellow |
Manang, Gandaki Zone,
Western Region, Nepal |
3.61ct |
|
|
|
|
broad absorption below
430nm |
inert |
inert |
GIA Gem Database 34750 |
|
Elbaite |
1,62 |
1,639 |
0,019 |
0,019 |
3,08 |
3,08 |
bluish green |
Nursitan Province,
Afghanistan |
12.13ct |
|
|
|
|
broad absorption below
420nm and above 670nm, lines at 459, 498nm |
inert |
inert |
GIA Gem Database 33658 |
|
Elbaite - Cu-bearing |
1,62 |
1,64 |
0,018 |
0,018 |
3,05 |
3,2 |
pink, green, purple,
brown, orange, black, red |
Momeik (Molo) , Mogok,
Birma |
|
|
|
|
|
|
inert and weak yellow |
inert and weak yellow |
The Australian
Gemmologist 2005 22, p303-309 |
|
Elbaite - Cu-bearing |
1,62 |
1,638 |
0,018 |
0,019 |
3,06 |
3,07 |
light to medium greenish
blue |
Nigeria |
|
1,636 |
1,638 |
1,618 |
1,620 |
cutoff at 650nm |
inert |
inert |
Gems & Gemology 2002
spring, p99 |
|
Elbaite - Cu-bearing |
1,62 |
1,648 |
0,019 |
0,022 |
|
|
gree, emerald green,
light blue, blue-violet |
Salgadinho, Paraiba,
Brazil |
|
1,620 |
1,626 |
1,640 |
1,648 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1990 Sep, p165-167 |
|
Elbaite - Cu-bearing |
1,62 |
1,643 |
|
|
3,01 |
3,12 |
highly saturated violet
to bluish violet, blue, bluish green, green and purple |
Nigeria |
0.31 - 1.04 ct |
|
|
|
|
|
inert |
inert |
Gems & Gemology 2007
Winter, p384 |
|
Liddicoatite |
1,62 |
1,64 |
0,02 |
0,02 |
3,06 |
3,06 |
light brownish green to
dark greenish brown |
|
|
|
|
|
|
weak band at 500nm |
inert |
inert |
Gems & Gemology 2007
spring p74 |
|
Mn-rich tourmaline |
1,62 |
1,641 |
0,021 |
0,021 |
3,1 |
3,1 |
Canary yellow |
Malawi |
2ea |
|
|
|
|
none |
inert |
inert |
Gems & Gemology 2001
summer p151-152 |
|
Tourmaline |
1,62 |
1,64 |
0,019 |
0,02 |
2,88 |
3,09 |
pale to dark green,
usually with a yellowish or, less commonly wuith a bluish tint |
Dudley pegmatite,
Kangaroo Island, Australia |
|
|
|
|
|
|
inert |
inert |
The Australian Gemmologist
1988 Nov,p 455-458 |
|
Tourmaline |
1,62 |
1,648 |
0,02 |
0,024 |
3,05 |
3,1 |
green, yellow, red, brown, pink, yellow-green |
Jagoda, Zambia |
|
1,620 |
1,624 |
1,640 |
1,648 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2000 Mar, p31-48 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,06 |
3,06 |
orange |
Nigeria |
6.72 ct |
1,620 |
1,620 |
1,640 |
1,640 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2000 Jun 2000, p62 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,04 |
3,04 |
red |
Vietnam |
7.21 ct |
|
|
|
|
strong absorption band at
535nm |
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1999 Sep, p121-122 |
|
Tourmaline |
1,62 |
1,646 |
0,02 |
0,026 |
3,06 |
3,14 |
green to bluish green,
blue |
Coolgardie, Western
Australia |
|
1,620 |
1,622 |
1,640 |
1,646 |
strong band around 490 nm |
inert |
inert |
The Australian
Gemmologist 2011 Jul-Sep, p171-175 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,05 |
3,05 |
red or pink, bicoloured
green and pink |
Nigeria |
|
|
|
|
|
|
|
|
Gems & Gemology 1998
winter, p 298-299 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,11 |
3,11 |
greyish blue |
Orissa, India |
1.74 ct |
|
|
|
|
|
|
|
Gems & Gemology 1993
Summer, p133 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,07 |
3,07 |
dark violetish blue |
Paraiba, Brazil |
15.18ct |
|
|
|
|
|
inert |
inert |
Gems & Gemology 1989
Winter, p241-242 |
|
Tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
3,06 |
3,06 |
violet |
Congo |
1.42ct |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology
2018 36(2), p 106-107 |
|
Tourmaline |
1,62 |
1,639 |
0,019 |
0,02 |
3,06 |
3,12 |
green, blue, pink, red |
Namibia |
|
1,620 |
1,622 |
1,639 |
1,642 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2019 68/3-4, p28 |
|
trapiche tourmaline |
1,62 |
1,64 |
0,02 |
0,02 |
2,82 |
2,99 |
green, black
carbonaceous inclusion material
responsible for trapiche pattern is concentrated in elongate growth channels |
Kavungu Mine, Jivunda,
Chief Sailunga's area, Zambia |
|
|
|
|
|
|
weak to moderate chalky
yellow |
inert |
Gems & Gemology 2007
Spring p36-46 |
|
Uvite |
1,62 |
1,641 |
0,021 |
0,021 |
2,99 |
3,04 |
brownish orange |
Kunar Province,
Afghanistan |
0.59 and 1.46 ct |
|
|
|
|
|
chalky greenish orange |
inert |
Gems & Gemology 2002
Winter, p357-358 |
|
Elbaite |
1,621 |
1,639 |
0,018 |
0,018 |
3,08 |
3,08 |
colourless |
Pala, San Diego County,
California, USA |
4.80ct |
|
|
|
|
|
inert |
inert |
GIA Gem Database 33591 |
|
Elbaite |
1,621 |
1,64 |
0,019 |
0,019 |
3,07 |
3,07 |
light red |
Stewart Lithia Mine,
Pala, San Diego County, California, USA |
16.84ct |
|
|
|
|
broad absorption below
420nm |
inert |
inert |
GIA Gem Database 33588 |
|
Elbaite |
1,621 |
1,64 |
0,017 |
0,019 |
3,17 |
3,2 |
green |
Luc Yen, Vietnam |
|
1,621 |
1,625 |
1,635 |
1,640 |
|
inert |
inert |
Gems & Gemology 2012
Fall, p169 |
|
Elbaite - Cu-bearing |
1,621 |
1,64 |
0,018 |
0,019 |
3,05 |
3,06 |
color change from purple
in daylight to grey bluish green in incandescent light |
Mozambique |
|
1,621 |
1,621 |
1,639 |
1,640 |
|
inert |
inert |
Gems & Gemology 2004
Fall, p251 |
|
Liddicoatite |
1,621 |
1,639 |
0,018 |
0,018 |
3,07 |
3,08 |
reddish purple |
Nigeria |
|
|
|
|
|
|
inert to very weak
greenish yellow |
inert |
Gems & Gemology 2001
fall p240 |
|
Liddicoatite |
1,621 |
1,641 |
0,018 |
0,02 |
3,06 |
3,08 |
greenish blue |
Mozambique? |
1.29-1.45ct |
1,621 |
1,622 |
1,640 |
1,641 |
|
|
|
Gems & Gemology 2010
winter, p323-325 |
|
Tourmaline |
1,621 |
1,64 |
0,019 |
0,019 |
3,07 |
3,07 |
green, blue, blue-green |
Neu-Schwaben, Namibia |
elbaite-schorl with
aditional tsilaite component in blue and blue-green samples |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1999 Mar, p2 |
|
Tourmaline |
1,621 |
1,649 |
0,028 |
0,028 |
3,13 |
3,13 |
yellowish green |
|
38.47ct |
|
|
|
|
a cut-off at about 410
nin, a |
inert |
inert |
Gems & Gemology 1986
Fall, p 175-176 |
|
Dravite |
1,622 |
1,646 |
0,02 |
0,023 |
|
|
yellow |
Yellow Mine, Kenya |
solide solutions between
dravite and uvite 78-22 to 90-10 |
1,622 |
1,624 |
1,643 |
1,646 |
|
|
|
The Journal of Gemmology
2000 Vol 27, N°1, p11-29 |
|
Elbaite |
1,622 |
1,64 |
0,018 |
0,018 |
3,06 |
3,06 |
green |
Nursitan Province,
Afghanistan |
|
|
|
|
|
|
inert |
inert |
GIA Gem Database 33648 |
|
Elbaite |
1,622 |
1,639 |
0,017 |
0,017 |
3,04 |
3,04 |
yellowish orange |
Alto Ligonha, Zambezia
Province, Mozambique |
7.50ct |
|
|
|
|
broad absorption below
420nm |
inert |
inert |
GIA Gem Database 34531 |
|
Elbaite |
1,622 |
1,64 |
0,016 |
0,016 |
3,2 |
3,2 |
greenish yellow |
Nacala, Nampula Province,
Mozambique |
16.08ct |
|
|
|
|
broad absorption below
430nm and above 670nm |
inert |
inert |
GIA Gem Database 34526 |
|
Elbaite |
1,622 |
1,64 |
0,018 |
0,018 |
3,05 |
3,05 |
orangy yellow and
green-yellow |
Nacala, Nampula Province,
Mozambique |
48.86ct |
|
|
|
|
broad absorption below
420nm and above 670nm, lines at 450, 538nm |
inert |
inert |
GIA Gem Database 34492 |
|
Elbaite |
1,622 |
1,64 |
0,018 |
0,018 |
3,12 |
3,12 |
red-purple and orangy red |
Stewart Lithia Mine,
Pala, San Diego County, California, USA |
4.88ct |
|
|
|
|
red-purple : broad
absorption below 420nm, from 500-540nm and above 680nm |
inert |
inert |
GIA Gem Database 34245 |
|
Elbaite |
1,622 |
1,64 |
0,018 |
0,018 |
3,05 |
3,05 |
colourless |
Brazil |
40.08ct |
|
|
|
|
|
inert |
inert |
GIA Gem Database 33585 |
|
Elbaite |
1,622 |
1,642 |
0,02 |
0,02 |
3,2 |
3,2 |
bluish green |
Neu Schwaben Mine,
Karibib, Erongo Region, Namibia |
9.19ct |
|
|
|
|
broad absorption below
420nm and above 650nm, line at 497nm |
inert |
inert |
GIA Gem Database 34728 |
|
Elbaite |
1,622 |
1,64 |
0,018 |
0,018 |
3,04 |
3,04 |
purplish red |
Alto Ligonha, Zambezia
Province, Mozambique |
11.41ct |
|
|
|
|
broad absorption below
420nm and between 500-540nm, lines at 450, 459, 538nm |
inert |
inert |
GIA Gem Database 34500 |
|
Elbaite - Cu-bearing |
1,622 |
1,644 |
0,02 |
0,02 |
2,99 |
2,99 |
greyish green |
Sao José da Batalha,
Paraiba, Brazil |
|
1,622 |
1,624 |
1,642 |
1,644 |
|
|
|
Gems & Gemology 1994
fall p178-183 |
|
Tourmaline |
1,622 |
1,64 |
0,018 |
0,018 |
3,06 |
3,06 |
pink to red |
Nigeria |
|
|
|
|
|
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1998 Dec, p179 |
|
Tourmaline |
1,622 |
1,64 |
0,018 |
0,018 |
3,03 |
3,03 |
colourless |
Sri Lanka |
2.96ct |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 1999 Jul p106 |
|
Tourmaline |
1,622 |
1,644 |
0,022 |
0,022 |
3,06 |
3,06 |
green (red) |
Umba Valley, Tanzania |
usambara effect, chelsea
: red |
|
|
|
|
Cr |
mustard yellow |
|
The Journal of Gemmology
1997 Vol 25, N°5, p325-330 |
|
Tourmaline colour change |
1,622 |
1,645 |
0,022 |
0,023 |
3,04 |
3,06 |
green, colour change
brownish red in artificial light |
East Africa |
|
1,644 |
1,645 |
1,622 |
1,622 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1988 36, Nr 3/4,p161 |
|
Uvite |
1,622 |
1,643 |
0,019 |
0,021 |
3,05 |
3,07 |
brownish orange, brown
yellow, orangy-yellow, brownish yellowish green, yellowish green,
bicoloured yellow-green and reddish
brown |
Morogoro, Tanzania |
transparent, in fact =
uvite-dravite tourmaline; chelsea none to medium red |
1,622 |
1,623 |
1,641 |
1,643 |
|
weak to strong chalky
greenish yellow |
inert |
Gems & Gemology 2006
summer, p182-184 |
|
Dravite |
1,623 |
1,64 |
0,017 |
0,017 |
2,922 |
2,922 |
|
Elahera, Sri Lanka |
|
1,623 |
1,623 |
1,640 |
1,640 |
|
|
|
Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1985 34, Nr3/4, p98-100 |
|
Elbaite |
1,623 |
1,64 |
0,017 |
0,017 |
3,02 |
3,02 |
yellow |
Minas Gerais, Brazil |
7.23ct |
|
|
|
|
broad absorption below
420nm |
inert |
inert |
GIA Gem Database 33617 |
|
Elbaite |
1,623 |
1,639 |
0,016 |
0,016 |
3,04 |
3,04 |
dark orange |
Alto Ligonha, Zambezia
Province, Mozambique |
7.13ct |
|
|
|
|
broad absorption below
420nm and between 500-540nm, lines at 450, 459, 538nm |
inert |
inert |
GIA Gem Database 34507 |
|
Elbaite |
1,623 |
1,64 |
0,017 |
0,017 |
3,06 |
3,06 |
yellowish orange |
Nacala, Nampula Province,
Mozambique |
8.05ct |
|
|
|
|
|
inert |
inert |
GIA Gem Database 33612 |
|
Elbaite |
1,623 |
1,642 |
0,019 |
0,019 |
3,24 |
3,24 |
greenish blue |
Alto Ligonha, Zambezia
Province, Mozambique |
12.87ct |
|
|
|
|
broad absorption above
660nm, line at 497nm |
inert |
inert |
GIA Gem Database 34524 |
|
Mn-rich tourmaline |
1,623 |
1,649 |
0,02 |
0,025 |
3,11 |
3,17 |
yellow, brownish yellow,
yellowish green |
Canary mining area,
eastern Province, Zambia |
°first large pocket mids
1990, =elbaite |
1,623 |
1,625 |
1,645 |
1,649 |
absorption to 460nm |
inert |
inert |
Gems & Gemology 2007
winter , p314-331 |
|
Tourmaline |
1,623 |
1,645 |
0,022 |
0,022 |
3,09 |
3,09 |
yellow |
Nigeria |
elbaite-tsilaisite serie |
1,623 |
1,623 |
1,645 |
1,645 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2000 Jun 2000, p61 |
|
Dravite |
1,624 |
1,654 |
0,03 |
0,03 |
3,03 |
3,07 |
red to brownish red,
transparent |
Zambia |
|
|
|
|
|
band 520-590nm, weaker
band 460-470nm, cutoff of the blue (440) |
|
|
Gems & Gemology 1985 spring
p35-39 |
|
Elbaite |
1,624 |
1,644 |
0,02 |
0,02 |
3,11 |
3,11 |
violetish purple |
Anjanabonoina Mine,
Ambohimanambola, Antananarivo Province, Madagascar |
6.53ct |
|
|
|
|
broad absorption above
680nm |
inert |
inert |
GIA Gem Database 33624 |
|
Elbaite |
1,624 |
1,645 |
0,021 |
0,021 |
3,11 |
3,11 |
yellow |
Manang, Gandaki Zone,
Western Region, Nepal |
5.50ct |
|
|
|
|
broad absorption below
440nm |
inert |
inert |
GIA Gem Database 34749 |
|
Elbaite |
1,624 |
1,644 |
0,02 |
0,02 |
3,17 |
3,17 |
dark greenish blue |
Neu Schwaben Mine,
Karibib, Erongo Region, Namibia |
3.88ct |
|
|
|
|
broad absorption below
420nm and above 640nm, line at 498nm |
inert |
inert |
GIA Gem Database 33679 |
|
Elbaite |
1,624 |
1,644 |
0,016 |
0,02 |
3,06 |
3,08 |
reddish brown |
Luc Yen, Vietnam |
|
1,624 |
1,626 |
1,638 |
1,644 |
|
inert |
inert |
Gems & Gemology 2012
Fall, p169 |
|
Elbaite - Cu-bearing |
1,624 |
1,646 |
0,022 |
0,022 |
3,03 |
3,03 |
|
Alto dos Quintos mine,
Rio Grande do Norte, Brazil |
|
|
|
|
|
|
|
|
Gems & Gemology 2001
winter p270 |
|
Elbaite |
1,625 |
1,641 |
0,016 |
0,016 |
3,05 |
3,05 |
purplish red |
Itinga, Minas Gerais,
Brazil |
16.87ct |
|
|
|
|
broad absorption below
420nm and from 510-560nm; line at 450nm |
inert |
inert |
GIA Gem Database 34309 |
|
Elbaite |
1,625 |
1,643 |
0,018 |
0,018 |
3,16 |
3,16 |
blue and red-purple |
Neu Schwaben Mine,
Karibib, Erongo Region, Namibia |
9.88ct |
|
|
|
|
blue : broad absorption
below 420nm and above 650nm; red-purple : broad absorption below 430nm and
above 670nm |
inert |
inert |
GIA Gem Database 34729 |
|
Elbaite |
1,625 |
1,646 |
0,017 |
0,018 |
3,17 |
3,19 |
yellow |
Luc Yen, Vietnam |
|
1,625 |
1,628 |
1,642 |
1,646 |
|
inert |
inert |
Gems & Gemology 2012
Fall, p169 |
|
Elbaite |
1,626 |
1,642 |
0,016 |
0,016 |
3,13 |
3,13 |
green-blue |
Mursinka, Ural Mts,
Russia |
1.80ct |
|
|
|
|
broad absorption below
420nm and above 670nm; lines at 459, 498nm |
inert |
inert |
GIA Gem Database 33671 |
|
Elbaite |
1,628 |
1,646 |
0,018 |
0,018 |
3,05 |
3,05 |
red-purple |
Governador Valadares,
Minas Gerais, Brazil |
4.52ct |
|
|
|
|
broad absorption below
420nm and from 510-540nm, line at 455nm |
inert |
inert |
GIA Gem Database 33604 |
|
Elbaite |
1,628 |
1,642 |
0,014 |
0,014 |
3,05 |
3,05 |
purplish red and
yellowish green |
Itambacuri, Minas Gerais,
Brazil |
20.15ct |
|
|
|
|
broad absorption below
420nm ; lines at 450, 459nm |
inert |
inert |
GIA Gem Database 34311 |
|
Elbaite |
1,628 |
1,646 |
0,018 |
0,018 |
3,09 |
3,09 |
orange |
Voi, Taita-Taveta
district, Coast Province, Kenya |
3.68ct |
|
|
|
|
broad absorption below
430nm |
inert |
inert |
GIA Gem Database 33624 |
|
Elbaite |
1,628 |
1,646 |
0,018 |
0,018 |
3,17 |
3,17 |
bluish green |
Usakos, Karibib District,
Erongo Region, Namibia |
6.02ct |
|
|
|
|
broad absorption below
420nm and above 670nm, line at 498nm |
inert |
inert |
GIA Gem Database 33665 |
|
Tourmaline |
1,628 |
1,648 |
0,02 |
0,02 |
|
|
bruingeel |
South Kenya |
|
|
|
|
|
|
|
|
Revue de Gemmologie A.F.G. 2006 n°157, p4-7 |
|
Elbaite |
1,629 |
1,643 |
0,014 |
0,014 |
3,13 |
3,13 |
greenish blue |
Neu Schwaben Mine,
Karibib, Erongo Region, Namibia |
7.25ct |
|
|
|
|
broad absorption above
680nm, line at 420nm |
inert |
inert |
GIA Gem Database 33672 |
|
Elbaite |
1,63 |
1,65 |
0,02 |
0,02 |
3,18 |
3,18 |
yellow |
Chipata, Eastern
Province, Zambia |
8.37ct |
|
|
|
|
broad absorption below
440nm |
inert |
inert |
GIA Gem Database 33619 |
|
Tourmaline |
1,63 |
1,65 |
0,02 |
0,02 |
3,05 |
3,05 |
brownish orangy yellow,
with some green areas |
Kenya |
"savannah" or
"golden" tourmaline |
|
|
|
|
general absorption to
about 480 nm |
moderately chalky,
moderately strong yellow |
inert |
Gems & Gemology 1996
Summer, p135-136 |
|
Tourmaline |
1,632 |
1,665 |
0,031 |
0,031 |
3,18 |
3,22 |
black |
Namibia |
|
1,632 |
1,634 |
1,663 |
1,665 |
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2019 68/3-4, p28 |
|
Elbaite - Cu-bearing |
|
|
|
|
|
|
commonly colour zoned,
with an "electric" blue rim and a pink-to-violet interior |
Mineraçao Batalha Mine,
Paraiba, Brazil |
|
|
|
|
|
|
|
|
Gems & Gemology 2007
fall, p238 |
|
Tourmaline |
|
|
|
|
|
|
|
Umba Valley, Tanzania |
Usambara effect |
|
|
|
|
|
|
|
The Journal of Gemmology
1999 Vol 26, N° 6, p386-396 |
TABLES
|
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
|
Buergerite |
1.653 |
1.737 |
0.07 |
0.084 |
3.25 |
3.35 |
|
|
|
|
Gemmo.eu 2013 |
|
Buergerite |
1.655 |
1.735 |
0.065 |
0.08 |
3.29 |
3.32 |
|
|
|
|
http://www.gemmology.be |
|
Buergerite |
1.655 |
1.735 |
0.065 |
0.08 |
3.29 |
3.32 |
1.655 |
1.670 |
1.735 |
1.735 |
http://www.geminterest.com |
|
Buergerite |
1.655 |
1.735 |
0.065 |
0.08 |
3.29 |
3.32 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Chromdravite |
1.772 |
1.778 |
0.006 |
0.006 |
3.39 |
3.41 |
|
|
|
|
http://www.gemmology.be |
|
Cr-Tourmaline |
1.622 |
1.643 |
0.019 |
0.021 |
3.05 |
3.07 |
1.622 |
1.623 |
1.641 |
1.643 |
http://www.geminterest.com |
|
Cr-Tourmaline |
1.772 |
1.778 |
0.006 |
0.006 |
3.39 |
3.41 |
1.772 |
1.772 |
1.778 |
1.778 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Cr-Tourmaline |
1.772 |
1.778 |
0.006 |
0.006 |
3.39 |
3.41 |
1.772 |
1.772 |
1.778 |
1.778 |
http://www.geminterest.com |
|
Cr-Tourmaline |
1.772 |
1.778 |
0.006 |
0.006 |
3.39 |
3.41 |
|
|
|
|
Tables of
Gemstone Identification, Roger Dedeyn, Ivo Quintens, 2007 |
|
Cr-Tourmaline |
1.772 |
1.778 |
0.006 |
0.006 |
3.39 |
3.41 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Dravite |
1.604 |
1.675 |
0.016 |
0.032 |
2.9 |
3.29 |
|
|
|
|
http://www.gemmology.be |
|
Dravite |
1.604 |
1.675 |
0.016 |
0.032 |
2.98 |
3.29 |
1.604 |
1.643 |
1.627 |
1.675 |
http://www.geminterest.com |
|
Dravite |
1.604 |
1.675 |
0.016 |
0.032 |
2.9 |
3.29 |
1.604 |
1.643 |
1.627 |
1.675 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Dravite |
1.604 |
1.675 |
0.016 |
0.032 |
2.9 |
3.29 |
1.604 |
1.643 |
1.627 |
1.675 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Dravite |
1.604 |
1.675 |
0.016 |
0.032 |
3.1 |
3.9 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Dravite |
1.612 |
1.661 |
0.019 |
0.03 |
3 |
3.2 |
|
|
|
|
Gemmo.eu 2013 |
|
Elbaite |
1.603 |
1.655 |
0.013 |
0.024 |
2.84 |
3.1 |
|
|
|
|
http://www.gemmology.be |
|
Elbaite |
1.603 |
1.655 |
0.013 |
0.024 |
2.84 |
3.2 |
1.603 |
1.634 |
1.619 |
1.655 |
http://www.geminterest.com |
|
Elbaite |
1.603 |
1.655 |
0.013 |
0.024 |
2.84 |
3.1 |
1.603 |
1.634 |
1.619 |
1.655 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Elbaite |
1.603 |
1.655 |
0.013 |
0.025 |
2.84 |
3.17 |
1.603 |
1.634 |
1.619 |
1.655 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Elbaite |
1.603 |
1.655 |
0.013 |
0.024 |
3 |
3.26 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Elbaite |
1.615 |
1.655 |
0.018 |
0.024 |
2.9 |
3.15 |
|
|
|
|
Gemmo.eu 2013 |
|
Elbaite Cu-bearing |
1.614 |
1.64 |
0.017 |
0.022 |
3.04 |
3.07 |
1.614 |
1.620 |
1.632 |
1.640 |
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
|
Ferridravite |
1.743 |
1.82 |
0.057 |
0.057 |
3.18 |
3.33 |
|
|
|
|
http://www.gemmology.be |
|
Foitite |
1.64 |
1.665 |
0.02 |
0.025 |
3.15 |
3.2 |
|
|
|
|
Gemmo.eu 2013 |
|
Foitite |
1.642 |
1.664 |
0.022 |
0.022 |
3.2 |
3.207 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Liddicoatite |
1.619 |
1.651 |
0.014 |
0.027 |
3 |
3.15 |
|
|
|
|
Gemmo.eu 2013 |
|
Liddicoatite |
1.621 |
1.645 |
0.014 |
0.019 |
3.02 |
3.15 |
1.621 |
1.628 |
1.637 |
1.645 |
http://www.geminterest.com |
|
Liddicoatite |
1.621 |
1.637 |
0.016 |
0.016 |
3.02 |
3.02 |
|
|
|
|
http://www.gemmology.be |
|
Liddicoatite |
1.621 |
1.637 |
0.016 |
0.016 |
3.02 |
3.02 |
1.621 |
1.621 |
1.637 |
1.637 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Liddicoatite |
1.621 |
1.637 |
0.016 |
0.016 |
3.02 |
3.02 |
|
|
|
|
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Liddicoatite |
1.612 |
1.648 |
0.016 |
0.016 |
3 |
3.26 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Olenite |
1.634 |
1.656 |
0.017 |
0.021 |
3 |
3.1 |
|
|
|
|
Gemmo.eu 2013 |
|
Olenite |
1.635 |
1.654 |
0.019 |
0.017 |
3.01 |
3.01 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Povondraite |
1.734 |
1.82 |
0.057 |
0.057 |
3.18 |
3.33 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Rossmanite |
1.623 |
1.646 |
0.018 |
0.023 |
2.95 |
3.05 |
|
|
|
|
Gemmo.eu 2013 |
|
Rossmanite |
1.734 |
1.82 |
0.021 |
0.021 |
3 |
3 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Schorl |
1.62 |
1.698 |
0.016 |
0.046 |
2.82 |
3.24 |
|
|
|
|
http://www.gemmology.be |
|
Schorl |
1.62 |
1.698 |
0.016 |
0.046 |
2.82 |
3.24 |
1.620 |
1.675 |
1.638 |
1.698 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Schorl |
1.62 |
1.698 |
0.016 |
0.046 |
2.82 |
3.24 |
1.620 |
1.675 |
1.632 |
1.698 |
http://www.geminterest.com |
|
Schorl |
1.62 |
1.698 |
0.016 |
0.046 |
2.82 |
3.24 |
1.620 |
1.675 |
1.638 |
1.698 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Schorl |
1.625 |
1.675 |
0.023 |
0.035 |
3.05 |
3.25 |
|
|
|
|
Gemmo.eu 2013 |
|
Schorl |
1.62 |
1.691 |
0.016 |
0.046 |
2.82 |
3.24 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Tourmaline |
1.603 |
1.778 |
0.006 |
0.08 |
2.84 |
3.4 |
1.603 |
1.772 |
1.619 |
1.778 |
http://www.geminterest.com |
|
Tourmaline |
1.603 |
1.772 |
0.006 |
0.08 |
2.82 |
3.41 |
|
|
|
|
http://www.gemmology.be |
|
Tourmaline |
1.603 |
1.82 |
0.016 |
0.046 |
3 |
3.26 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Tourmaline |
1.614 |
1.666 |
0.014 |
0.032 |
3.01 |
3.21 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
|
Tourmaline |
1.614 |
1.666 |
0.014 |
0.046 |
2.96 |
3.3 |
1.614 |
1.640 |
1.634 |
1.626 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
|
Tourmaline |
1.614 |
1.666 |
0.014 |
0.032 |
2.9 |
3.4 |
1.614 |
1.639 |
1.634 |
1.666 |
Gemmological Tables, Ulrich Henn,
2004 |
|
Tourmaline |
1.616 |
1.64 |
0.014 |
0.022 |
3 |
3.12 |
|
|
|
|
John Sinkakas,
Gemstone and mineral data book,1972 |
|
Tourmaline |
1.616 |
1.66 |
0.014 |
0.031 |
3 |
3.26 |
1.616 |
1.634 |
1.629 |
1.660 |
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
|
Tourmaline |
1.616 |
1.652 |
0.014 |
0.022 |
3 |
3.12 |
1.616 |
1.630 |
1.634 |
1.652 |
Gems, R Webster,
5th edition 1994 |
|
Tourmaline |
1.616 |
1.655 |
0.018 |
0.024 |
2.9 |
3.15 |
|
|
|
|
Gemmo.eu 2013 |
|
Tourmaline - achroite |
1.603 |
1.655 |
0.013 |
0.025 |
2.84 |
3.2 |
1.603 |
1.634 |
1.619 |
1.655 |
http://www.geminterest.com |
|
Tourmaline - achroite |
1.604 |
1.675 |
0.016 |
0.032 |
2.9 |
3.29 |
|
|
|
|
http://www.gemmology.be |
|
Tsilaisite |
1.621 |
1.649 |
0.023 |
0.028 |
3.12 |
3.14 |
1.621 |
1.623 |
1.645 |
1.649 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Tsilaisite |
1.622 |
1.648 |
0.023 |
0.028 |
3.13 |
3.13 |
|
|
|
|
http://www.gemmology.be |
|
Tsilaisite |
1.622 |
1.648 |
0.023 |
0.028 |
3.13 |
3.13 |
1.622 |
1.623 |
1.645 |
1.648 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Uvite |
1.612 |
1.66 |
0.017 |
0.021 |
3.01 |
3.09 |
|
|
|
|
http://www.gemmology.be |
|
Uvite |
1.612 |
1.66 |
0.017 |
0.021 |
3.01 |
3.09 |
1.612 |
1.639 |
1.632 |
1.660 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
|
Uvite |
1.612 |
1.66 |
0.017 |
0.021 |
3.01 |
3.04 |
1.612 |
1.639 |
1.632 |
1.660 |
http://www.geminterest.com |
|
Uvite |
1.612 |
1.66 |
0.017 |
0.023 |
3.01 |
3.09 |
1.612 |
1.639 |
1.632 |
1.660 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Uvite |
1.612 |
1.66 |
0.017 |
0.021 |
3 |
3.26 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Uvite |
1.615 |
1.665 |
0.018 |
0.029 |
2.95 |
3.2 |
|
|
|
|
Gemmo.eu 2013 |
CAUSE OF
COLOUR
|
Stone |
Colour |
Cause
of colour |
Reference |
|
Elbaite |
blue |
Fe²+ in
octahedral coordination with possible influence of some iron-related
charge-transfer processes |
Gems & Gemology Summer 1988 |
|
Elbaite |
blue |
Cu²+ in the Y
position, or a combination of Cu2+, Mn3+, and other causes |
Gems and Gemology 26, 189-205 (1990) |
|
Liddicoatite |
blue |
Fe²+ in
octahedral coordination with possible influence of some iron-related
charge-transfer processes |
Gems & Gemology Summer 1988 |
|
Elbaite |
brown |
Fe²+->Ti4+ charge transfer |
Gems & Gemology Summer 1988 |
|
Dravite |
green |
V³+ generally
with minor amounts of Cr³+, both in octahedral coordination |
Gems & Gemology Summer 1988 |
|
Elbaite |
green |
Fe²+ and Ti4+ in
octahedral coordination. The influence of various charge transfer processes
involving iron is a distinct possibility |
Gems & Gemology Summer 1988 |
|
Liddicoatite |
green |
Fe²+ and Ti4+ in
octahedral coordination. The influence of various charge transfer processes
involving iron is a distinct possibility |
Gems & Gemology Summer 1988 |
|
Uvite |
green |
V³+ generally
with minor amounts of Cr³+, both in octahedral coordination |
Gems & Gemology Summer 1988 |
|
Elbaite |
greenish-yellow |
Mn²+ in octahedral coordination |
Gems & Gemology Summer 1988 |
|
Liddicoatite |
greenish-yellow |
Mn²+ in octahedral coordination |
Gems & Gemology Summer 1988 |
|
Elbaite |
orange |
yellow + pink |
Gems & Gemology Summer 1988 |
|
Liddicoatite |
orange |
yellow + pink |
Gems & Gemology Summer 1988 |
|
Elbaite |
pink to red |
generally
believed to be due to Mn³+ in octahedral coordination, sometimes created by
irradiation |
Gems & Gemology Summer 1988 |
|
Elbaite |
pink to red |
Mn³+,Mn²+ ,
charge transfer involving Mn |
The Tourmaline group, Dietrich, 1985 |
|
Liddicoatite |
pink to red |
generally
believed to be due to Mn³+ in octahedral coordination, sometimes created by
irradiation |
Gems & Gemology Summer 1988 |
|
Liddicoatite |
pink to red |
Mn³+,Mn²+ ,
charge transfer involving Mn |
The Tourmaline group, Dietrich, 1985 |
|
Dravite |
red |
Fe³+ pairs |
Gems & Gemology Summer 1988 |
|
Elbaite |
turquoise |
Cu²+ in the Y
position |
Gems and Gemology 26, 189-205 (1990) |
|
Dravite |
yellow to brown |
Fe²+-O-Ti4+
charge transfer, with those low in
iron : yellow and those rich in iron : brown |
Gems & Gemology Summer 1988 |
|
Uvite |
yellow to brown |
Fe²+-O-Ti4+
charge transfer, with those low in
iron : yellow and those rich in iron : brown |
The Tourmaline group, Dietrich, 1985 |
|
Elbaite |
Yellow to yellow-brown |
Mn²+-Ti4+ IVCT |
http://minerals.gps.caltech.edu |
|
Elbaite |
yellow-green |
Mn²+-O-Ti4+
charge transfer |
Gems & Gemology Summer 1988 |
|
Liddicoatite |
yellow-green |
Mn²+-O-Ti4+
charge transfer |
Gems & Gemology Summer 1988 |
MINERAL
INCLUSIONS
|
Inclusion |
Stone |
Reference |
|
actinolite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
albite |
Liddicoatite |
Gems & Gemology 2002 Spring p28-53 |
|
albite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
anatase |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
apatite |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
brookite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
cassiterite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
copper |
Elbaite Cu-bearing |
Gems & Gemology fall 1994, p178-183 |
|
copper |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
diopside |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
fluorapatite |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
fluorite |
Draviet |
Dietrich, The tourmaline group, 1985 |
|
garnet |
Draviet |
Dietrich, The tourmaline group, 1985 |
|
garnet |
Schorl |
Dietrich, The tourmaline group, 1985 |
|
graphite |
Tourmaline |
http://www.gemmology.be |
|
hematite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
herderite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
lepidolite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
magnetite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
manganotantalite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
monazite |
Tourmaline |
http://www.gemmology.be |
|
muscovite |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
pharmacosiderite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
phlogopite |
Draviet |
Dietrich, The tourmaline group, 1985 |
|
pyrite |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
pyrochlore |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
quartz |
Liddicoatite |
Gems & Gemology 2002 Spring p28-53 |
|
quartz |
Tourmaline |
http://www.gemmology.be |
|
rutile |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
tenorite |
Elbaite Cu-bearing |
Gems & Gemology fall 1994, p178-183 |
|
titanite |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
topaz |
Tourmaline |
Dietrich, The tourmaline group, 1985 |
|
tourmaline |
Liddicoatite |
Gems & Gemology 2002 Spring p28-53 |
|
tourmaline |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
uraninite |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
|
xenotime |
Liddicoatite |
Gems & Gemology 2002 Spring p28-53 |
|
zircon |
Tourmaline |
E.J. Gübelin and
J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005) |
LOCALITIES
|
STONE |
LOCALITIES |
REFERENCE |
|||
|
copper bearing elbaite |
Glorious mine |
Junco do Serido |
Paraiba |
Brazil |
Gems & Gemology 2007 fall p236 |
|
copper bearing elbaite |
|
Mavuco |
Nampula Province |
Mozambique |
Gems & Gemology Spring 2008 |
|
Dravite |
|
Jajarkot District |
Bheri Zone |
Nepal |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1993, Sep, p71 |
|
Elbaite |
Alto Quixaba Pegmatite |
Frei Martinho |
Paraiba |
Brazil |
Der Aufschluss 3/2002 |
|
Elbaite |
Mineraçao Batalha Mine, Sao
José da Batalha |
Salgadinho |
Paraiba |
Brazil |
Gems & Gemology 2007 fall p238 |
|
Elbaite |
Gregorio pegmatite |
20km SSW of Parelhas |
Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 winter p269 |
|
Elbaite |
Bolandeiro pegmatite |
36km SE of Parelhas |
Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 winter p269 |
|
Elbaite |
Mulungu mine (Capoeira,
Boqueiraozinho, CDM mine) |
Parelhas |
Rio Grande do Norte |
Brazil |
Gems & Gemology 2006 Spring p5 |
|
Elbaite |
Stargazer claim |
O'Grady Lake |
Northwest Territories |
Canada |
Mineralogical Record 2001/3 |
|
elbaite |
|
Virunga region |
Kivu |
Congo |
Gemmologie, Zeitschrift der Deutschen Gemmologischen
Gesellschaft 2010, 59, 3/4, p111-113 |
|
Elbaite |
Naje |
Manang District |
Gandaki Zone |
Nepal |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1993, Sep, p74 |
|
Elbaite |
Hyakule |
Sankhuwasabha District (Sankhuwa Sahba) |
Kosi Zone |
Nepal |
Zeitschrift der Deutschen Gemmologischen Gesellschaft,
1993, Sep, p73 |
|
Elbaite |
|
Phakuwa |
Sankhuwasabha District |
Nepal |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1993, Sep, p73 |
|
Elbaite |
|
Ogbomosho |
Oyo State |
Nigeria |
Gems & Gemology 2000 winter p323 |
|
Elbaite |
Cryo-Genie Mine (Lost Valley
Truck Trail Claim), Warner Springs |
San Diego County |
California |
USA |
Min.Rec.: 33(5): 363-407 |
|
Elbaite |
Elisabeth R mine, Pala
District |
San Diego County |
California |
USA |
Gems & Gemology 2001 fall p231 |
|
Elbaite |
Pala Chief Mine, Pala Chief Mountain,
Pechanga, Pala District |
San Diego County |
California |
USA |
MinRec 5/2002 |
|
Elbaite |
Tourmaline Queen Mine,
Tourmaline Queen Mt., Pala District |
San Diego County |
California |
USA |
Mineralogical Record, Vol. 33: pages 378-381. (2002) |
|
Elbaite |
Dunton Gem Quarry, Newry |
Oxford County |
Maine |
USA |
Gems & Gemology,v. 15, p. 19-24. (1975) |
|
Elbaite |
Aries |
Lundazi District |
Eastern Province |
Zambia |
Gems & Gemology 2000 winter p323 |
|
Elbaite |
Kalungabeba |
Lundazi District |
Eastern Province |
Zambia |
Gems & Gemology 2000 winter p323 |
|
Liddicoatite |
Anjanabonoina pegmatite,
Ambohimanambola, Departementa Betafo |
Vakinankaratra region (Betafo - Antsirabé region) |
Antananarivo Province |
Madagascar |
Extra Lapis No 17 |
|
Liddicoatite |
Vohitrakanga, Departementa Betafo |
Vakinankaratra region (Betafo - Antsirabé region) |
Antananarivo Province |
Madagascar |
Gems & Gemology 2002 Spring p49 |
|
Liddicoatite |
|
|
Cabo Delgado province |
Mozambique |
Gems & Gemology spring 2007 p74 |
|
Mn bearing tourmaline |
Canary Mining Area (Kaombeka
mine, Doost-Chiwele mine) |
Lundazi District |
Eastern Province |
Zambia |
Gems & Gemology 2007 winter, p 315 |
|
tourmaline |
Coolgardie |
Coolgardie Shire |
Western Australia |
Australia |
The Australian Gemmologist,
Jul-Sep, p171-175 |
|
tourmaline |
Boqueirao mine |
Serido Oriental |
Rio Grande do Norte |
Brazil |
Gemmologie 55/ 1-2/Jun 2006 |
|
tourmaline |
Yellow Mine, Tsavo West, Voi |
Taita Taveta District |
Coast Province |
Kenya |
The Journal of Gemmology
2000, Vol 27, N°1, p8-10 |
|
tourmaline |
|
Mananara |
|
Madagascar |
Gemmologie, Dez 1999, p196 |
|
tourmaline |
|
Vakinankaratra Region (Betafo - Antsirabé region) |
Antananarivo Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
|
tourmaline |
Departementa Ambositra |
Amoron'i Mania region |
Fianarantsoa Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
|
tourmaline |
Nandihizana,
Ambatofinandrahana , Camp Robin area |
Amoron'i Mania Region |
Fianarantsoa Province |
Madagascar |
Gems & Gemology winter 2006, p280 |
|
tourmaline |
Vondrozo Departement |
Atsimo-Atsinanana Region |
Fianarantsoa Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
|
tourmaline |
Ilakaka gem deposit, Ilakaka, Departementa Ranohira |
Horombe region |
Fianarantsoa Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
|
tourmaline |
Nickelville, Departementa Ambatondrazaka |
Alaotra region |
Toamasina Province |
Madagascar |
Pezzotta (2006) |
|
tourmaline |
Muiane pegmatite |
Alto Ligonha district |
Zambezia Province |
Mozambique |
Lapis 2000/8 |
|
tourmaline |
Omapyo Mine (Chandler mine) |
35km E of
Omaruru |
|
Namibia |
Gems & Gemology 2002 Fall p268 |
|
tourmaline |
Neuschwaben Mine |
Karibib |
|
Namibia |
Namibia, Zauberwelt edler Steine und Kristalle,
Steffen Jahn e.a., 2001 |
|
tourmaline |
Usakos-Turmalin Mine, Usakos |
Karibib District |
Erongo Region |
Namibia |
Namibia, Zauberwelt edler Steine und Kristalle,
Steffen Jahn e.a., 2001 |
|
tourmaline |
Farm Otjimbingwe 104 |
Karibib District |
Erongo Region |
Namibia |
Namibia, Zauberwelt edler Steine und Kristalle,
Steffen Jahn e.a., 2001 |
|
tourmaline |
|
Oyo Valley |
|
Nigeria |
Gems & Gemology Winter 2009, p305 |
|
tourmaline |
Peatfold |
Glenbuchat |
Aberdeenshire |
Scotland |
The Journal of Gemmology
1982, Vol 18, N°2, p 121 |
|
tourmaline |
|
Landanai |
|
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
|
Tiriri |
|
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
Merelani Hills (Mererani),
Umba Valley |
Lelatema Mts |
Arusha Region |
Tanzania |
Gemmologie, 1997, Mar, p31 |
|
tourmaline |
Umba Valley |
Lelatema Mts |
Arusha region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
|
Same |
Kilimanjaro Region |
Tanzania |
Gems & Gemology 2000 winter p325 |
|
tourmaline |
|
Babati |
Manyara Region |
Tanzania |
Gemmologie, 1997, Mar, p31 |
|
tourmaline |
|
Magogoni |
Morogoro Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
|
Mvuha |
Morogoro Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
|
Tunduru-Songea area |
Ruvuma Region |
Tanzania |
Gemmologie, 1997, Mar,p31 |
|
tourmaline |
Mt Mica mine, Paris |
Oxford County |
Maine |
USA |
Gems and Gemology, 2005,
summer p150 |
|
tourmaline |
Khai Trung mine |
|
|
Vietnam |
Revue de Gemmologie A.FG 2009, N°167, p9 |
|
tourmaline |
Kumanga mine |
Mkushi |
Central Province |
Zambia |
Gems & Gemology 2004 winter p348 |
|
uvite-dravite |
|
|
Morogoro Region |
Tanzania |
Gems & Gemology 2006 summer, p182 |
CHEMICAL DATA
(%)
|
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
MgO |
FeO |
TiO2 |
CaO |
Na2O |
Cr2O3 |
V2O3 |
Ga2O3 |
ZnO |
K2O |
CuO |
H2O |
F |
Bi2O3 |
Li2O |
SrO |
B2O3 |
P2O5 |
PbO |
|
|
Tourmaline |
green, colour change:
brownish red |
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, Nr 3/4, p162 |
35.29 |
33.57 |
|
11.13 |
|
0.18 |
1.95 |
1.53 |
0.36 |
0.04 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Tourmaline |
green, colour change:
brownish red |
East Africa |
|
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1988, Nr 3/4, p162 |
34.87 |
31.73 |
|
11.4 |
|
0.48 |
2.63 |
1.39 |
0.64 |
0.06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite Cu-bearing |
blue to green |
Alto dos Quintos |
Brazil |
Gems & Gemology Spring 2007, 236-239 |
|
|
0.37 |
|
|
|
|
|
|
|
0.03 |
|
|
1.17 |
|
|
0.22 |
|
|
|
|
|
|
Elbaite Cu-bearing |
greenish grey |
Batalha |
Brazil |
Gems & Gemology winter 1994, p 178-183 |
37.29 |
38.73 |
2.99 |
0.3 |
0.12 |
0.07 |
0.45 |
2.36 |
0.01 |
|
|
|
0.02 |
0.49 |
3.13 |
|
|
1.62 |
|
10.9 |
|
|
|
Elbaite Cu-bearing |
blue to green |
Batalha |
Brazil |
Gems & Gemology Spring 2007, 236-239 |
|
|
1.1 |
|
|
|
|
|
|
|
0.04 |
|
|
2.63 |
|
|
0.77 |
|
|
|
|
|
|
Elbaite Cu-bearing |
grayish green |
Batalha |
Brazil |
Gems & Gemology winter 1994, p 178-183 |
36.6 |
40.2 |
1.42 |
0.49 |
2.71 |
0.17 |
0.25 |
2.22 |
0.01 |
|
|
|
0.03 |
1.01 |
|
|
|
|
|
|
|
|
|
Elbaite Cu-bearing |
purple pink |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
37.42 |
42.37 |
0.53 |
|
|
|
0.08 |
1.94 |
|
|
|
0.03 |
0.02 |
0.51 |
3.13 |
|
|
1.62 |
|
10.9 |
|
|
|
Elbaite Cu-bearing |
purple |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
37.39 |
42.14 |
0.52 |
|
0.01 |
|
0.07 |
2 |
|
|
|
0.04 |
0.01 |
0.52 |
3.13 |
|
0.02 |
1.62 |
|
10.9 |
|
0.01 |
|
Elbaite Cu-bearing |
bluish purple |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
37.11 |
39.66 |
1.32 |
|
|
|
0.62 |
2.16 |
|
|
|
|
0.02 |
0.62 |
3.13 |
|
0.15 |
1.62 |
|
10.9 |
|
|
|
Elbaite Cu-bearing |
blue |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
36.97 |
38.95 |
2.3 |
|
|
0.01 |
0.55 |
2.26 |
|
|
|
0.01 |
0.02 |
0.72 |
3.13 |
|
0.11 |
1.62 |
|
10.9 |
|
0.01 |
|
Elbaite Cu-bearing |
bluish green |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
36.75 |
38.99 |
1.32 |
0.18 |
0.15 |
0.07 |
0.19 |
2.32 |
|
0.01 |
|
0.11 |
0.02 |
1.08 |
3.13 |
|
0.83 |
1.62 |
|
10.9 |
|
0.01 |
|
Elbaite Cu-bearing |
blue green |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
36.53 |
38.58 |
1.48 |
|
0.07 |
0.06 |
0.05 |
2.49 |
|
0.01 |
|
0.25 |
0.02 |
1.76 |
3.13 |
|
0.01 |
1.62 |
|
10.9 |
|
0.01 |
|
Elbaite Cu-bearing |
bluish green |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
36.83 |
39.35 |
0.85 |
0.95 |
0.34 |
0.11 |
0.24 |
2.47 |
|
0.01 |
|
0.08 |
0.02 |
2.37 |
3.13 |
|
0.03 |
1.62 |
|
10.9 |
|
0.02 |
|
Elbaite Cu-bearing |
green |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
36.89 |
38.31 |
2.16 |
0.06 |
0.04 |
0.02 |
0.3 |
2.51 |
|
|
|
0.52 |
0.04 |
2.38 |
3.13 |
|
0.05 |
1.62 |
|
10.9 |
|
0.01 |
|
Elbaite Cu-bearing |
yellowish green |
Batalha |
Brazil |
Gems & Gemology winter 1994, p 178-183 |
37.27 |
39.04 |
1.47 |
0.54 |
0.22 |
0.1 |
0.46 |
2.27 |
0.01 |
|
|
|
0.03 |
0.37 |
3.13 |
|
|
1.62 |
|
10.9 |
|
|
|
Elbaite Cu-bearing |
grayish green |
Batalha |
Brazil |
Gems & Gemology winter 1994, p 178-183 |
36.8 |
38.2 |
0.92 |
0.52 |
3.1 |
0.14 |
0.34 |
2.29 |
0.01 |
|
|
|
0.04 |
1.02 |
|
|
|
|
|
|
|
|
|
Elbaite Cu-bearing |
violetish blue |
Batalha |
Brazil |
Gems & Gemology 1990 Fall p194-195 |
37.06 |
38.47 |
2.55 |
|
|
0.01 |
0.47 |
2.35 |
|
|
|
0.01 |
0.02 |
0.74 |
3.13 |
|
0.08 |
1.62 |
|
10.9 |
|
0.02 |
|
Elbaite Cu-bearing |
blue to green |
Glorious |
Brazil |
Gems & Gemology Spring 2007, 236-239 |
0 |
0 |
1.83 |
|
|
|
|
|
|
|
0.04 |
|
|
3.34 |
|
|
0.71 |
|
|
|
|
|
|
Elbaite Cu-bearing |
emerald green |
Mina da Batalha |
Brazil |
Gems & Gemology 2006 Spring p 4-21 |
37.05 |
38.9 |
1.74 |
|
|
|
|
2.28 |
|
|
|
|
|
1.59 |
|
|
|
1.68 |
|
11.1 |
|
|
|
Elbaite Cu-bearing |
turquoise |
Mina da Batalha |
Brazil |
Gems & Gemology 2006 Spring p 4-21 |
36.38 |
38.55 |
0.32 |
|
|
|
|
2.26 |
|
|
|
|
|
0.5 |
|
|
|
1.65 |
|
9.8 |
|
|
|
Elbaite Cu-bearing |
greenish blue |
Mina da Batalha |
Brazil |
Gems & Gemology 2006 Spring p 4-21 |
36.84 |
39.02 |
2.33 |
|
|
|
|
2.51 |
|
|
|
|
|
1.22 |
|
|
|
1.73 |
|
9.62 |
|
|
|
Elbaite Cu-bearing |
neon blue |
Mina da Batalha |
Brazil |
Gems & Gemology 2006 Spring p 4-21 |
36.68 |
38.49 |
1.47 |
|
|
|
|
2.27 |
|
|
|
|
|
1.59 |
|
|
|
1.67 |
|
10.6 |
|
|
|
Elbaite Cu-bearing |
blue to green |
Muhungu |
Brazil |
Gems & Gemology Spring 2007, 236-239 |
|
|
0.9 |
|
|
|
|
|
|
|
0.04 |
|
|
1.67 |
|
|
0.13 |
|
|
|
|
|
|
Elbaite Cu-bearing |
blue |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
37 |
40.81 |
0.42 |
|
|
|
0.47 |
1.91 |
|
|
|
0.03 |
0.04 |
0.44 |
|
0.77 |
0.47 |
|
|
|
|
0.08 |
|
Elbaite Cu-bearing |
blue-green |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
37.07 |
37.62 |
3.15 |
|
0.26 |
|
0.46 |
2.23 |
|
|
|
|
0.04 |
0.54 |
|
1.21 |
0.27 |
|
|
|
|
0.08 |
|
Elbaite Cu-bearing |
green-blue |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
35.99 |
37.64 |
2.05 |
|
0.03 |
|
0.59 |
2.05 |
|
|
|
|
0.03 |
0.69 |
|
1.11 |
0.46 |
|
|
|
|
0.23 |
|
Elbaite Cu-bearing |
green-blue |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
37.21 |
41.35 |
0.81 |
|
0.23 |
0.03 |
0.08 |
1.99 |
|
|
|
0.08 |
0.03 |
0.51 |
|
0.42 |
0.48 |
|
|
|
|
0.04 |
|
Elbaite Cu-bearing |
bluish green |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
36.97 |
37.63 |
2.49 |
|
0.3 |
0.06 |
0.56 |
2.14 |
|
|
|
0.5 |
0.04 |
0.41 |
|
1.18 |
0.47 |
|
|
|
|
0.06 |
|
Elbaite Cu-bearing |
green-blue |
Mulungu Mine, Rio Grande do Norte |
Brazil |
Gems & Gemology 2001 Winter p272 |
37.79 |
40.43 |
0.79 |
|
0.08 |
0.02 |
0.13 |
1.99 |
|
|
|
0.24 |
0.03 |
0.4 |
|
0.56 |
0.81 |
|
|
|
|
0.02 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.51 |
41.74 |
0.57 |
|
0.01 |
|
0.75 |
1.97 |
|
|
|
|
0.02 |
0.32 |
|
1.61 |
0.15 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.31 |
40.79 |
1.23 |
|
0.01 |
0.01 |
0.77 |
2.07 |
|
|
|
|
0.02 |
0.39 |
|
1.57 |
0.1 |
|
|
|
|
|
|
Elbaite Cu-bearing |
greenish blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
36.69 |
39.17 |
2.44 |
|
0.18 |
0.04 |
0.45 |
2.42 |
|
|
|
|
0.02 |
1.28 |
|
1.95 |
0.36 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.47 |
40.23 |
0.47 |
|
0.01 |
|
0.67 |
2.12 |
|
|
|
|
0.02 |
1.96 |
|
1.75 |
0.49 |
|
|
|
|
0.02 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.53 |
40.42 |
1.59 |
|
0.01 |
0.01 |
0.75 |
2.06 |
|
|
|
|
0.02 |
0.5 |
|
1.63 |
0.1 |
|
|
|
|
|
|
Elbaite Cu-bearing |
bluish green |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.05 |
40.36 |
2.44 |
|
0.06 |
0.05 |
0.06 |
2.48 |
|
|
|
|
0.03 |
1.48 |
|
1.26 |
0.01 |
|
|
|
|
|
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
36.62 |
41.73 |
0.5 |
|
0.01 |
|
0.44 |
1.83 |
|
|
|
|
0.02 |
0.67 |
|
1.14 |
|
|
|
|
|
|
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.03 |
40.39 |
0.93 |
|
0.01 |
0.01 |
0.75 |
2.03 |
|
|
|
|
0.02 |
1.43 |
|
1.54 |
|
|
|
|
|
|
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
36.52 |
39.95 |
2.53 |
|
0.06 |
0.02 |
0.41 |
2.16 |
|
|
|
|
0.02 |
0.63 |
|
1.51 |
|
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37.48 |
40.67 |
0.11 |
|
|
|
0.72 |
1.84 |
|
|
|
|
0.02 |
0.83 |
|
1.4 |
|
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
36.96 |
40.52 |
0.48 |
|
|
|
0.77 |
1.99 |
|
|
|
|
0.02 |
1.52 |
|
1.55 |
|
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
Quintos de Baixo, Rio Grande do Norte |
Brazil |
Gemmologie, Zeitschrift der deutschen Gemmologischen
Gesellschaft, 2005, Sep p80 |
37 |
40.4 |
0.47 |
|
0.03 |
|
0.68 |
1.98 |
|
|
|
|
0.02 |
1.38 |
|
1.53 |
|
|
|
|
|
0.01 |
|
Liddicoatite |
purplish red |
Minas Gerais |
Brazil |
Gems & Gemology 2002 Spring |
37.27 |
38.71 |
2.79 |
2.39 |
0.11 |
|
|
1.3 |
|
|
|
|
|
|
3.08 |
1.45 |
|
2.28 |
|
10.9 |
|
|
|
Liddicoatite |
purplish red |
Minas Gerais |
Brazil |
Gems & Gemology 2002 Spring |
38.08 |
39.81 |
3.25 |
0.29 |
|
|
|
0.97 |
|
|
|
|
|
|
3.13 |
1.48 |
|
2.62 |
|
11.1 |
|
|
|
Liddicoatite |
|
Manitoba |
Canada |
Gems & Gemology 2002 Spring |
37.2 |
40.7 |
2.5 |
1.5 |
0.3 |
|
|
1.2 |
|
|
|
|
|
|
3.37 |
0.9 |
|
2.03 |
|
10.8 |
|
|
|
Liddicoatite |
yellowish green |
|
Congo |
Gems & Gemology 2002 Spring |
38.53 |
37.94 |
3.13 |
0.57 |
0.68 |
0.05 |
|
1.09 |
|
|
|
|
|
|
3.59 |
0.45 |
|
2.79 |
|
11 |
|
|
|
Liddicoatite |
greyish pink |
|
Congo |
Gems & Gemology 2002 Spring |
37.68 |
39.26 |
3.53 |
0.6 |
0.46 |
0.03 |
|
0.57 |
|
|
|
|
|
|
3.54 |
0.51 |
|
2.51 |
|
11 |
|
|
|
Liddicoatite |
pink |
Blizna |
Czech Republic |
Gems & Gemology 2002 Spring |
35.5 |
38.3 |
2.58 |
4.62 |
0.14 |
0.34 |
0.05 |
1.39 |
|
|
|
|
|
|
3.07 |
1.13 |
|
1.66 |
|
10.8 |
|
|
|
Tourmaline |
cat's eye |
|
East Africa |
The Journal of Gemmology 1995, Vol 24, N°8, p 574 |
37.38 |
31.39 |
|
10.87 |
3.5 |
0.23 |
1.03 |
2.01 |
0.19 |
|
|
|
0.08 |
|
3.3 |
|
|
|
|
10.8 |
|
|
|
Dravite |
red |
John Saul Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
33.89 |
48.34 |
0.31 |
0.01 |
0.01 |
0.2 |
0.62 |
1.58 |
|
|
|
|
0.01 |
|
|
|
|
|
|
|
|
|
|
Dravite |
yellow pink |
John Saul Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
36.83 |
34.83 |
0.02 |
8.95 |
0.92 |
|
0.9 |
1.98 |
0.09 |
0.01 |
|
|
0.08 |
|
|
|
|
|
|
|
|
|
|
Dravite |
yellow green |
John Saul Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
37.14 |
35.41 |
0.36 |
9.25 |
0.07 |
|
0.64 |
2.32 |
0.06 |
0.14 |
|
|
0.05 |
|
|
|
|
|
|
|
|
|
|
Dravite |
yellow brown |
Mukongonyi |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
38.07 |
34.11 |
0.03 |
10.57 |
0.17 |
0.47 |
1.88 |
1.7 |
0.06 |
0.01 |
|
|
0.08 |
|
|
|
|
|
|
|
|
|
|
Dravite |
yellow |
Voi-Taveta |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
36.54 |
35.02 |
|
9.28 |
|
0.68 |
1.09 |
2.04 |
|
|
|
|
0.07 |
|
|
|
|
|
|
|
|
|
|
Dravite |
blue green |
Yellow Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
36.91 |
34.35 |
0.02 |
9.57 |
0.02 |
0.72 |
1.24 |
2.01 |
0.23 |
0.02 |
|
|
0.09 |
|
|
|
|
|
|
|
|
|
|
Dravite |
light green |
Yellow Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
37.44 |
31.75 |
|
12.41 |
0.03 |
0.06 |
3.14 |
1.06 |
0.07 |
|
|
|
0.01 |
|
|
0.17 |
|
|
|
|
|
|
|
Dravite |
green |
Yellow Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
37.61 |
35.5 |
|
9.64 |
|
0.53 |
0.92 |
1.98 |
0.43 |
0.03 |
|
|
0.04 |
|
|
|
|
|
|
|
|
|
|
Dravite |
yellow (savannah) |
Yellow Mine, Taita-Taveta District |
Kenya |
The Journal of Gemmology 2000, Vol 27, N°1, p21 |
38.23 |
35.96 |
0.02 |
9.54 |
0.02 |
0.57 |
0.65 |
2.15 |
0.01 |
0.02 |
|
|
0.06 |
|
|
0.01 |
|
|
|
|
|
|
|
Tourmaline |
golden yellow |
|
Kenya |
The Journal of Gemmology, 1981, N°7, p440 |
36.64 |
35.38 |
|
9.3 |
0 |
0.8 |
1.05 |
2.06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Liddicoatite |
pink red |
Alakamisy-Itenina |
Madagascar |
Gems & Gemology 2002 Spring |
37.22 |
38.03 |
2.63 |
4.06 |
0.1 |
0.07 |
0.18 |
1.4 |
|
|
|
|
0.02 |
|
3.17 |
0.64 |
|
1.86 |
|
10.9 |
|
|
|
Liddicoatite |
colourless |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.43 |
41.18 |
3.46 |
0.1 |
0.1 |
|
|
0.92 |
|
|
|
|
|
|
3.23 |
1.33 |
|
2.57 |
|
11.2 |
|
|
|
Liddicoatite |
dark greenish yellow |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.02 |
39.08 |
2.86 |
4.86 |
0.74 |
0.11 |
0.07 |
1.01 |
|
|
|
|
0.14 |
|
3.44 |
0.81 |
|
1.88 |
|
11.1 |
|
|
|
Liddicoatite |
dark red |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.58 |
40.22 |
4 |
0.65 |
0.57 |
0.59 |
0.07 |
1.72 |
|
|
|
|
0.24 |
|
3.45 |
0.98 |
|
2.85 |
|
11.4 |
|
|
|
Liddicoatite |
purplish red |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.81 |
38.96 |
4.05 |
0.1 |
|
|
|
0.59 |
|
|
|
|
|
|
3.34 |
0.96 |
|
4.75 |
|
11 |
|
|
|
Liddicoatite |
pale pink |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.12 |
40.06 |
3.84 |
0.22 |
0.12 |
|
|
0.79 |
|
|
|
|
|
|
3.23 |
1.22 |
|
2.63 |
|
11 |
|
|
|
Liddicoatite |
dark bluish green |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
36.87 |
40.23 |
2.78 |
0.34 |
0.98 |
|
|
1.35 |
|
|
|
|
|
|
3.16 |
1.33 |
|
2.32 |
|
11 |
|
|
|
Liddicoatite |
purplish red |
Anjanabonoina |
Madagascar |
Gems & Gemology 2002 Spring |
37.5 |
37.49 |
3.03 |
2.84 |
0.09 |
|
|
1.27 |
|
|
|
|
0.04 |
|
3.77 |
0 |
|
2.35 |
|
10.9 |
|
|
|
Liddicoatite |
red |
Antaboaka |
Madagascar |
Gems & Gemology 2002 Spring |
37.29 |
38.91 |
4.1 |
0.52 |
0.7 |
|
0.3 |
0.76 |
|
|
|
|
0.1 |
|
3.14 |
1.4 |
|
2.59 |
|
11 |
|
|
|
Liddicoatite |
brown |
Antsirabé |
Madagascar |
Gems & Gemology 2002 Spring |
37.7 |
37.9 |
4.21 |
0.27 |
0.83 |
0.38 |
0.11 |
0.88 |
|
|
|
|
|
|
2.69 |
1.72 |
|
2.48 |
|
10.9 |
|
|
|
Liddicoatite |
pink |
Malakialina |
Madagascar |
Gems & Gemology 2002 Spring |
37.74 |
37.7 |
3.95 |
0.7 |
0.06 |
0.03 |
0.08 |
1 |
|
|
|
|
|
|
2.5 |
2.67 |
|
2.8 |
|
10.9 |
|
|
|
Liddicoatite |
light yellow |
Malakialina |
Madagascar |
Gems & Gemology 2002 Spring |
37.96 |
37.92 |
4.1 |
0.22 |
1.14 |
0.36 |
0.1 |
0.94 |
|
|
|
|
|
|
2.67 |
2.4 |
|
2.75 |
|
11 |
|
|
|
Liddicoatite |
light green |
Malakialina |
Madagascar |
Gems & Gemology 2002 Spring |
37.91 |
37.95 |
4.15 |
0.11 |
0.81 |
0.11 |
0.1 |
0.96 |
|
|
|
|
|
|
2.89 |
1.91 |
|
2.8 |
|
11 |
|
|
|
Liddicoatite |
green |
Malakialina |
Madagascar |
Gems & Gemology 2002 Spring |
37.94 |
38 |
4.16 |
0.15 |
1.16 |
0.12 |
0.13 |
0.95 |
|
|
|
|
|
|
2.95 |
1.79 |
|
2.75 |
|
11 |
|
|
|
Liddicoatite |
pink |
Masoandro |
Madagascar |
Gems & Gemology 2002 Spring |
37.06 |
40.53 |
2.58 |
1.23 |
0.36 |
|
0.43 |
0.8 |
|
|
|
|
0.13 |
|
3.23 |
1.23 |
|
2.1 |
|
11 |
|
|
|
Elbaite |
purple, colour change |
|
Mozambique |
Gems & Gemology 2005 Summer p174 |
36.74 |
42.61 |
0.09 |
|
0.01 |
0.01 |
0.8 |
1.63 |
|
0.12 |
|
0.02 |
0.02 |
0.02 |
3.35 |
0.97 |
|
1.75 |
0 |
11 |
|
|
|
Elbaite |
purple, colour change |
|
Mozambique |
Gems & Gemology 2005 Summer p174 |
36.78 |
42.66 |
0.13 |
|
0.01 |
0.01 |
0.64 |
1.74 |
|
0.09 |
|
0.02 |
|
0.02 |
3.34 |
1 |
|
2.06 |
0 |
11.1 |
|
|
|
Elbaite - Tourmaline group |
greyish purple, colour change |
|
Mozambique |
Gems & Gemology 2005 Summer p174 |
36.69 |
41.64 |
2.04 |
|
0.04 |
0.02 |
0.48 |
2.05 |
|
0.01 |
|
|
|
0.05 |
3.37 |
0.9 |
|
1.81 |
0.1 |
11 |
|
|
|
Elbaite Cu-bearing |
pink |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.59 |
42.27 |
0.26 |
|
|
|
0.1 |
2.39 |
|
|
|
|
|
0.07 |
3.23 |
1.18 |
|
1.98 |
|
11 |
|
|
|
Elbaite Cu-bearing |
green |
|
Mozambique |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 2006, Jun, p16 |
36.76 |
38.57 |
3.67 |
|
0.07 |
0.02 |
0.4 |
2.46 |
|
|
|
|
0.03 |
0.66 |
|
1.76 |
0.08 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
|
Mozambique |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 2006, Jun, p16 |
37.46 |
40.75 |
0.1 |
|
|
0.01 |
0.43 |
1.94 |
|
|
|
|
0.04 |
0.41 |
|
1.45 |
0.6 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
green |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.63 |
41.97 |
0.92 |
|
|
|
0.12 |
2.3 |
|
|
|
|
|
0.54 |
3.23 |
1.16 |
|
1.9 |
|
10.5 |
|
|
|
Elbaite Cu-bearing |
blue-green |
|
Mozambique |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 2006, Jun, p16 |
37.04 |
40.94 |
0.86 |
|
0.01 |
|
0.74 |
1.93 |
|
|
|
|
0.04 |
0.37 |
|
1.55 |
0.29 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
yellow-green |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.21 |
41.95 |
1.28 |
|
|
|
|
2.15 |
|
|
|
|
|
0.21 |
3.33 |
0.94 |
|
1.81 |
|
11 |
|
|
|
Elbaite Cu-bearing |
blue |
|
Mozambique |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 2006, Jun, p16 |
37.51 |
41.74 |
0.57 |
|
0.01 |
|
0.75 |
1.97 |
|
|
|
|
0.02 |
0.32 |
|
1.61 |
0.15 |
|
|
|
|
0.01 |
|
Elbaite Cu-bearing |
blue |
|
Mozambique |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 2006, Jun, p16 |
37.31 |
4079 |
1.24 |
|
|
0.01 |
0.77 |
2.07 |
|
|
|
|
0.02 |
0.39 |
|
1.55 |
0.1 |
|
|
|
|
|
|
Elbaite Cu-bearing |
greenish blue |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.68 |
42.2 |
0.41 |
|
|
|
0.16 |
2.21 |
|
|
|
|
|
0.3 |
3.24 |
1.16 |
|
1.94 |
|
11 |
|
|
|
Elbaite Cu-bearing |
bluish green |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.62 |
42.19 |
0.01 |
|
|
|
0.92 |
1.63 |
|
|
|
|
|
0.54 |
3.28 |
1.05 |
|
2.04 |
|
11 |
|
|
|
Elbaite Cu-bearing |
violet |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.64 |
40.81 |
2.55 |
|
|
|
0.02 |
2.26 |
|
|
|
|
|
0.11 |
3.32 |
0.91 |
|
1.71 |
|
10.4 |
|
|
|
Elbaite Cu-bearing |
purple |
|
Mozambique |
Gems & Gemology Spring 2008, 4-30 |
36.68 |
41.23 |
2.2 |
|
|
|
0.01 |
2.1 |
|
|
|
|
|
0.16 |
3.32 |
0.93 |
|
1.7 |
|
10.9 |
|
|
|
Elbaite Cu-bearing |
blue to green |
Alto Ligonha |
Mozambique |
Gems & Gemology Spring 2007, 236-239 |
|
|
2.42 |
|
|
|
|
|
|
|
0.03 |
|
|
0.62 |
|
|
0.42 |
|
|
|
|
|
|
Elbaite Cu-bearing |
bright blue |
Alto Ligonha |
Mozambique |
Gems & Gemology 2006 Spring p 4-21 |
38.64 |
40.51 |
0.22 |
|
|
|
|
2.27 |
|
|
|
|
|
0.38 |
|
|
|
1.72 |
|
9.08 |
|
|
|
Elbaite Cu-bearing |
light green |
Alto Ligonha |
Mozambique |
Gems & Gemology 2006 Spring p 4-21 |
38.14 |
38.49 |
3.43 |
|
|
|
|
2.07 |
|
|
|
|
|
0.21 |
|
|
|
1.41 |
|
8.79 |
|
|
|
Elbaite Cu-bearing |
bluish green |
Alto Ligonha |
Mozambique |
Gems & Gemology 2006 Spring p 4-21 |
37.54 |
37.94 |
4.04 |
|
|
|
|
2.34 |
|
|
|
|
|
2.65 |
|
|
|
1.82 |
|
11 |
|
|
|
Elbaite Cu-bearing |
violetish blue |
Alto Ligonha |
Mozambique |
Gems & Gemology 2006 Spring p 4-21 |
37.89 |
39.72 |
2.83 |
|
|
|
|
2.21 |
|
|
|
|
|
0.37 |
|
|
|
1.4 |
|
9.67 |
|
|
|
Liddicoatite |
brown |
Muiane |
Mozambique |
Gems & Gemology 2002 Spring |
36.55 |
38.45 |
2.88 |
0.77 |
2.94 |
0.07 |
0.16 |
1.42 |
|
|
|
|
|
|
3.07 |
1.44 |
|
2.13 |
|
10.9 |
|
|
|
Tourmaline |
green |
|
Namibia |
Gemmologie (2019) 68/3-4, p32 |
38.56 |
39.65 |
1.97 |
|
1.73 |
|
0.86 |
2.28 |
|
|
|
|
0.06 |
|
|
|
|
|
|
|
|
|
|
Tourmaline |
green-blue |
|
Namibia |
Gemmologie (2019) 68/3-4, p32 |
39.24 |
39.69 |
1.28 |
|
2.28 |
|
1.09 |
1.94 |
|
|
|
|
0.07 |
|
|
|
|
|
|
|
|
|
|
Tourmaline |
blue |
|
Namibia |
Gemmologie (2019) 68/3-4, p32 |
38.17 |
38.26 |
0.88 |
|
4.61 |
|
0.42 |
2.43 |
|
|
|
|
0.03 |
|
|
|
|
|
|
|
|
|
|
Tourmaline |
pink |
|
Namibia |
Gemmologie (2019) 68/3-4, p32 |
38.77 |
40.09 |
0.71 |
|
0.15 |
|
0.38 |
1.87 |
|
|
|
|
0.02 |
|
|
|
|
|
|
|
|
|
|
Elbaite Cu-bearing |
light blue neon |
Alto dos Quitos |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
37.54 |
39.67 |
0.53 |
|
|
|
|
2.2 |
|
|
|
|
|
0.87 |
|
|
|
1.55 |
|
10.1 |
|
|
|
Elbaite Cu-bearing |
light blue |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
37.64 |
39.53 |
3.55 |
|
|
|
|
2.21 |
|
|
|
|
|
1.19 |
|
|
|
1.68 |
|
11.8 |
|
|
|
Elbaite Cu-bearing |
violetish blue |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
38.27 |
40.54 |
2.26 |
|
|
|
|
2.55 |
|
|
|
|
|
1.3 |
|
|
|
1.74 |
|
11 |
|
|
|
Elbaite Cu-bearing |
neon blue |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
40.7 |
41.79 |
3.88 |
|
|
|
|
2.46 |
|
|
|
|
|
1.9 |
|
|
|
1.87 |
|
10.4 |
|
|
|
Elbaite Cu-bearing |
greenish blue |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
38.04 |
40.73 |
2.9 |
|
|
|
|
2.55 |
|
|
|
|
|
1.52 |
|
|
|
1.82 |
|
11.4 |
|
|
|
Elbaite Cu-bearing |
emerald green |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
37.99 |
40.14 |
3.93 |
|
|
|
|
2.6 |
|
|
|
|
|
1.7 |
|
|
|
1.71 |
|
10.3 |
|
|
|
Elbaite Cu-bearing |
light blue |
Edeko |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
37.59 |
40.22 |
2.1 |
|
|
|
|
2.24 |
|
|
|
|
|
0.72 |
|
|
|
1.69 |
|
9.95 |
|
|
|
Elbaite Cu-bearing |
blue to green |
Edoukou |
Nigeria |
Gems & Gemology Spring 2007, 236-239 |
|
|
2.97 |
|
|
|
|
|
|
|
0.03 |
|
|
1.88 |
|
|
0.36 |
|
|
|
|
|
|
Elbaite Cu-bearing |
light blue |
Mulungu |
Nigeria |
Gems & Gemology 2006 Spring p 4-21 |
37.22 |
39.76 |
0.37 |
|
|
|
|
2.11 |
|
|
|
|
|
0.46 |
|
|
|
1.66 |
|
9.47 |
|
|
|
Elbaite Cu-bearing |
blue to green |
Ofiki |
Nigeria |
Gems & Gemology Spring 2007, 236-239 |
|
|
1.84 |
|
|
|
|
|
|
|
0.03 |
|
|
0.56 |
|
|
0.09 |
|
|
|
|
|
|
Liddicoatite |
pinkish orange |
|
Nigeria |
Gems & Gemology 2002 Spring |
37.9 |
39.06 |
3.09 |
0.66 |
0.22 |
|
|
1.03 |
|
|
|
|
|
|
3.46 |
0.69 |
|
1.67 |
|
11 |
|
|
|
Liddicoatite |
colourless |
|
Nigeria |
Gems & Gemology 2002 Spring |
38.9 |
37.47 |
3.08 |
0.36 |
0.05 |
|
|
0.89 |
|
|
|
|
|
|
3.46 |
0.69 |
|
3.06 |
|
11 |
|
|
|
Liddicoatite |
light pink |
|
Nigeria |
Gems & Gemology 2002 Spring |
38.76 |
37.18 |
3.2 |
0.37 |
0.02 |
|
|
0.38 |
|
|
|
|
|
|
3.47 |
0.63 |
|
3.1 |
|
10.9 |
|
|
|
Liddicoatite |
purplish red |
Abuja |
Nigeria |
Gems & Gemology 2002 Spring |
38.43 |
40.15 |
3.02 |
0.22 |
0.09 |
|
0.05 |
1.48 |
|
|
|
|
0.02 |
|
3.29 |
1.23 |
|
2.69 |
|
11.2 |
|
|
|
Liddicoatite |
light green |
Malkhan |
Rusland |
Gems & Gemology 2002 Spring |
37.85 |
38.1 |
3.2 |
1 |
0.92 |
0.09 |
0.03 |
1.28 |
|
|
|
|
0.09 |
|
2.8 |
1 |
|
2.13 |
|
11.7 |
|
|
|
Liddicoatite |
light pink |
Transbaikalia |
Rusland |
Gems & Gemology 2002 Spring |
37.96 |
40.23 |
2.58 |
0.58 |
0.17 |
|
|
1.4 |
|
|
|
|
|
|
3.18 |
1.39 |
|
2.48 |
|
11.1 |
|
|
|
Elbaite |
green |
|
Rwanda |
The Journal of Gemmology 2014, Vol 34, No4,p348 |
38.27 |
39.66 |
0.66 |
|
1.89 |
0.01 |
0.29 |
2.06 |
|
|
|
|
0.01 |
|
3.4 |
0.92 |
|
2.21 |
|
11.1 |
|
|
|
Elbaite |
pink |
|
Rwanda |
The Journal of Gemmology 2014, Vol 34, No4,p348 |
38.34 |
42.75 |
0.2 |
|
0.03 |
0.01 |
0.28 |
1.7 |
|
|
|
|
0.01 |
|
3.58 |
0.63 |
|
2.01 |
|
11.2 |
|
|
|
Elbaite |
blue-green |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.46 |
37.67 |
1.89 |
|
4.47 |
|
0.22 |
3.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite |
blue-green |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.6 |
37.42 |
1.77 |
|
4.5 |
|
0.2 |
2.39 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite |
pink |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.64 |
42.37 |
0.25 |
|
0.2 |
|
0.08 |
1.77 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite |
pink |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.65 |
42.48 |
|
|
|
|
|
1.65 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite |
green |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.13 |
37.77 |
1.66 |
|
4.58 |
|
0.18 |
2.5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Elbaite |
green |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
37.55 |
37.75 |
1.72 |
|
5.03 |
|
0.21 |
2.47 |
0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Schorl |
dark blue-black |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
34.83 |
35.51 |
0.92 |
|
12.73 |
|
|
1.35 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Schorl |
dark blue-black |
Glenbuchat |
Scotland |
The Journal of Gemmology 1982, Vol 18, N°2, p124 |
35.51 |
35.4 |
0.91 |
|
13.42 |
|
|
2.04 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dravite |
brown |
Elahera |
Sri Lanka |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1985, 34, Nr3/4, p99 |
37.13 |
32.24 |
0.04 |
11.27 |
0.78 |
0.59 |
1.96 |
1.59 |
|
|
|
|
0.06 |
|
|
|
|
|
|
|
|
|
|
Uvite |
brown |
Elahera |
Sri Lanka |
Zeitschrift der Deutschen Gemmologischen
Gesellschaft, 1985, 34, Nr3/4, p99 |
37.45 |
29.6 |
0.04 |
12.23 |
1.11 |
0.63 |
3.93 |
0.88 |
|
|
|
|
0.07 |
|
|
|
|
|
|
|
|
|
|
Dravite |
light brown |
Tunduru-Songea region |
Tanzania |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 1997, Mar, p40 |
38.5 |
36.02 |
0.01 |
10.31 |
0.03 |
0.61 |
1 |
2.3 |
0.01 |
|
|
|
0.07 |
|
|
0.32 |
|
|
|
|
|
|
|
Liddicoatite |
blue |
Sangasanga |
Tanzania |
Gems & Gemology 2002 Spring |
37.41 |
37.37 |
2.58 |
2.2 |
0.24 |
0.08 |
|
1.31 |
|
|
|
|
|
|
3.65 |
0.15 |
|
2.4 |
|
10.8 |
|
|
|
Liddicoatite |
pink |
Sangasanga |
Tanzania |
Gems & Gemology 2002 Spring |
37.12 |
39.14 |
2.61 |
1.25 |
0.09 |
0.02 |
|
1.32 |
|
|
|
|
0.02 |
|
3.38 |
0.79 |
|
2.39 |
|
10.9 |
|
|
|
Liddicoatite |
yellowish brown |
Sangasanga |
Tanzania |
Gems & Gemology 2002 Spring |
38.37 |
38.76 |
2.73 |
1.01 |
0.11 |
0.02 |
|
1.3 |
|
|
|
|
|
|
3.81 |
|
|
2.62 |
|
11.1 |
|
|
|
Tourmaline |
green (usambara) |
Umba Valley |
Tanzania |
The Journal of Gemmology 1997, Vol 25, N°5 p 327 |
37.51 |
32.71 |
|
10.58 |
|
0.36 |
1.89 |
1.66 |
0.22 |
0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Tourmaline |
green (usambara) |
Umba Valley |
Tanzania |
The Journal of Gemmology 1997, Vol 25, N°5 p 327 |
37.84 |
32.49 |
|
11.3 |
0.06 |
0.43 |
1.87 |
1.76 |
0.34 |
0.05 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Uvite |
brown |
Tunduru-Songea region |
Tanzania |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 1997, Mar, p40 |
37.43 |
27.4 |
0.01 |
15.63 |
0.25 |
0.39 |
5.68 |
0.08 |
0.03 |
0.05 |
|
|
|
|
|
1.78 |
|
|
|
|
|
|
|
Uvite |
dark brown |
Tunduru-Songea region |
Tanzania |
Gemmologie, Zeitschrift der deutschen gemmologischen
Gesellschaft, 1997, Mar, p40 |
37.64 |
27.28 |
|
15.87 |
0.25 |
0.4 |
5.69 |
0.1 |
0.07 |
0.05 |
|
|
|
|
|
1.97 |
|
|
|
|
|
|
|
Elbaite |
colourless |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.83 |
42.9 |
0 |
|
|
|
0 |
2.03 |
|
|
|
|
|
|
3.27 |
1.11 |
|
1.91 |
|
11 |
|
|
|
Elbaite |
blue |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.78 |
38.49 |
1.2 |
|
5.22 |
|
0.75 |
2 |
|
|
|
|
0.03 |
|
3.12 |
1.31 |
|
1.49 |
|
10.8 |
|
|
|
Elbaite |
bluish green |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.55 |
39.55 |
0.43 |
|
4.35 |
|
0.06 |
2.1 |
|
|
|
|
0.02 |
|
3.31 |
0.88 |
|
1.48 |
|
10.8 |
|
|
|
Elbaite |
olive green |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.76 |
41.57 |
0.82 |
0.02 |
1.79 |
0.18 |
0.14 |
2.12 |
|
|
|
|
0.02 |
|
3.35 |
0.95 |
|
1.71 |
|
11 |
|
|
|
Elbaite |
yellowish green |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.63 |
41.93 |
0.41 |
|
0.96 |
|
0.22 |
2.22 |
|
|
|
|
0.02 |
|
3.27 |
1.09 |
|
1.87 |
|
11 |
|
|
|
Elbaite |
light green |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.79 |
41.78 |
0.44 |
0.03 |
1.33 |
|
0.32 |
2.07 |
|
|
|
|
0.02 |
|
3.33 |
0.97 |
|
1.82 |
|
11 |
|
|
|
Elbaite |
red |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.84 |
42.7 |
0.29 |
|
|
|
1.01 |
1.55 |
|
|
|
|
0.01 |
|
3.4 |
0.88 |
|
2.02 |
|
11.1 |
|
|
|
Elbaite |
pink |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.78 |
42.46 |
0.55 |
|
0.11 |
|
1.11 |
2.01 |
|
|
|
|
0.04 |
|
3.36 |
1.01 |
|
2.11 |
|
11.1 |
|
|
|
Elbaite |
pale pink |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.8 |
42.89 |
0.12 |
|
0.07 |
|
0.07 |
2 |
|
|
|
|
|
|
3.33 |
0.99 |
|
1.9 |
|
11 |
|
|
|
Elbaite |
light blue |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.6 |
39.5 |
1.11 |
|
3.45 |
|
0.88 |
2.04 |
|
|
|
|
0.02 |
|
3.2 |
1.17 |
|
1.69 |
|
10.9 |
|
|
|
Rossmanite |
colourless |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
37.26 |
43.43 |
0.2 |
|
0.05 |
|
|
1.48 |
|
|
|
|
|
|
3.38 |
0.94 |
|
1.79 |
|
11.1 |
|
|
|
Schorl |
black |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.51 |
32.65 |
0.26 |
1.3 |
13.2 |
0.54 |
0.09 |
1.82 |
|
|
|
|
0.03 |
|
3.08 |
0.88 |
|
0.54 |
|
10.5 |
|
|
|
Schorl |
black |
Mt Mica, Maine |
USA |
Gems & Gemology 2005 Summer |
36.36 |
34.77 |
0.63 |
|
12.54 |
0.07 |
|
0.92 |
|
|
|
|
|
|
3.19 |
0.88 |
|
0.52 |
|
10.5 |
|
|
|
Liddicoatite |
red |
|
Vietnam |
Gems & Gemology 2002 Spring |
36.54 |
41.02 |
2.04 |
1.46 |
0.11 |
0.02 |
0.04 |
1.08 |
|
|
|
|
0.02 |
|
3.32 |
0.98 |
|
2.04 |
|
11 |
|
|
|
Dravite |
red |
|
Zambia |
Gems & Gemology 1985 spring p42 |
36.7 |
33.9 |
0.05 |
10 |
2.1 |
0.2 |
0.14 |
2.3 |
|
|
|
|
0.02 |
|
|
|
|
|
|
|
|
|
|
Tourmaline |
bright yellow |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.34 |
38.54 |
6.34 |
|
|
0.41 |
0.4 |
2.43 |
|
|
|
|
0.02 |
|
3.28 |
0.97 |
|
1.48 |
|
10.8 |
|
|
|
Tourmaline |
green-yellow |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.26 |
37.56 |
7.39 |
|
|
0.31 |
0.03 |
2.48 |
|
0.15 |
|
|
0.11 |
|
3.2 |
1.05 |
|
1.32 |
|
10.7 |
|
|
|
Tourmaline |
pinkish brown |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.33 |
37.9 |
6.61 |
|
|
0.24 |
0.08 |
2.65 |
|
0.03 |
|
|
0.06 |
|
3.24 |
0.98 |
|
1.44 |
|
10.7 |
|
|
|
Tourmaline |
light brown |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.32 |
37.85 |
6.33 |
|
|
0.44 |
0.46 |
2.5 |
|
0.02 |
|
|
0.02 |
|
3.46 |
0.53 |
|
1.54 |
|
10.8 |
|
|
|
Tourmaline |
light yellow |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.56 |
39.68 |
4.41 |
|
|
0.17 |
0.03 |
2.44 |
|
|
|
|
0.02 |
|
3.26 |
1.01 |
|
1.59 |
|
10.8 |
|
|
|
Tourmaline |
yellow-green |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.58 |
41.54 |
2.68 |
|
|
0.14 |
0.02 |
2.54 |
|
|
|
|
0.03 |
|
3.25 |
1.16 |
|
1.57 |
|
11 |
|
|
|
Tourmaline |
dark brownish orange |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.58 |
41.79 |
1.52 |
|
|
0.15 |
|
2.34 |
|
|
|
0.02 |
|
|
3.21 |
1.21 |
|
1.82 |
|
11 |
|
|
|
Tourmaline |
brownish orange |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.9 |
41.86 |
1.31 |
0.05 |
|
0.13 |
0.05 |
2.47 |
|
|
|
0.02 |
0.02 |
|
3.27 |
1.1 |
|
1.88 |
|
11 |
|
|
|
Tourmaline |
yellow-brown |
Canary mining area |
Zambia |
Gems & Gemology winter 2007, p 314-331 |
36.22 |
38.58 |
7.16 |
|
0.08 |
0.33 |
0.06 |
2.47 |
|
|
|
|
0.03 |
|
3.19 |
1.13 |
|
1.29 |
|
10.8 |
|
|
|
Tourmaline |
pink |
Lundazi |
Zambia |
Gems & Gemology 1997 Fall p210 |
38.25 |
41.15 |
0.22 |
|
0.03 |
0 |
0.55 |
1.7 |
0.02 |
0.005 |
|
0.01 |
0.01 |
|
3.57 |
0.56 |
0.42 |
2.16 |
|
11.1 |
0.01 |
|
|
Tourmaline |
yellow-green |
Lundazi |
Zambia |
Gems & Gemology 1997 Fall p210 |
38.45 |
39.8 |
0.39 |
0.05 |
0.76 |
0.04 |
0.79 |
1.78 |
0.01 |
0.01 |
|
0.02 |
0.01 |
|
3.37 |
0.94 |
0.07 |
2.17 |
|
11.1 |
|
|
|
Tourmaline |
purple |
|
Zambia |
The Journal of Gemmology 2020 Vol37 (3), p253 |
36.24 |
40.95 |
2.37 |
0.01 |
0.16 |
0.004 |
0.46 |
1.8 |
|
|
|
0.16 |
0.006 |
|
3.47 |
0.65 |
|
1.67 |
|
10.8 |
|
|