|
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 |
Pezzottaite |
1,594 |
1,609 |
0,015 |
0,015 |
2,92 |
2,95 |
Strong pinkish orange
(salmon) to purplish pink |
Myanmar |
|
|
|
|
|
|
|
|
Gems & Gemology 2007
Spring, p70-72 |
Pezzottaite |
1,598 |
1,606 |
0,008 |
0,008 |
2,906 |
2,906 |
dark pink |
Afghanistan |
|
1,598 |
1,598 |
1,606 |
1,606 |
|
|
|
Gemmologie 2003 2/3 -
p67-80 |
Pezzottaite |
1,598 |
1,606 |
0,007 |
0,008 |
2,91 |
2,97 |
purple-pink |
Afghanistan |
transparent to
semi-transparent |
1,598 |
1,598 |
1,605 |
1,606 |
band at 500nm and weaker
band at 570nm |
weak banded white |
very weak violet |
Gems & Gemology 2005
Spring p 61-62 |
Pezzottaite |
1,6 |
1,61 |
0,01 |
0,01 |
3,06 |
3,06 |
purplish pink |
|
8,13 ct, , with
iridescent tubes |
|
|
|
|
|
|
|
Gems & Gemology 2024
Fall, p368 |
Pezzottaite |
1,6 |
1,621 |
0,01 |
0,01 |
3,05 |
3,14 |
pinkish purple |
Sahatany Valley,
Vakinankaratra region, Madagascar |
|
1,600 |
1,611 |
1,610 |
1,621 |
|
inert |
inert |
Gems & Gemology 2025
Spring, p94 |
Pezzottaite |
1,601 |
1,62 |
0,008 |
0,009 |
3,09 |
3,14 |
purplish pink,
transparent to translucent |
Ambatovita, Madagascar |
chelsea: faint orange
pink to pink-orange |
1,601 |
1,611 |
1,612 |
1,620 |
//OA: diffuse lines at
465 and 477 plus a band at 485-500nm; perpendicular to OA: bands at 485-500nm
and 550-580nm |
inert |
inert |
Gems & Gemology 2003
winter p284-301 |
Pezzottaite |
1,601 |
1,615 |
0,014 |
0,014 |
3,17 |
3,17 |
pink |
Madagascar |
0.43ct |
|
|
|
|
|
inert |
inert |
ACAM lab 4877 |
Pezzottaite |
1,604 |
1,615 |
0,007 |
0,007 |
3,089 |
3,103 |
dark pink |
Madagascar |
|
1,604 |
1,608 |
1,611 |
1,615 |
|
|
|
Gemmologie 2003 2/3 -
p67-80 |
Pezzottaite |
1,607 |
1,619 |
0,008 |
0,009 |
3,09 |
3,14 |
|
Madagascar |
|
1,607 |
1,610 |
1,615 |
1,619 |
|
|
|
Gems & Gemology 2005
Spring p 61-62 |
Pezzottaite |
1,608 |
1,615 |
0,007 |
0,007 |
3,04 |
3,04 |
pink |
Russia |
0.47ct |
|
|
|
|
|
inert |
inert |
ACAM lab 4499 |
Pezzottaite |
1,61 |
1,618 |
0,008 |
0,008 |
3,1 |
3,1 |
red |
Ambatovita, Fianarantsoa
Province, Madagascar |
4.15ct |
|
|
|
|
broad absorption from
485-500nm, lines at 465, 477nm |
inert |
inert |
GIA Gem Database 35636 |
Pezzottaite |
1,61 |
1,61 |
|
|
3,07 |
3,07 |
pink-purple |
|
cabochon 40.44ct, spot RI |
|
|
|
|
|
inert |
inert |
http://www.laboratoire-francais-gemmologie.fr
2015 |
Pezzottaite |
|
|
|
|
3,16 |
3,16 |
purplish red |
Madagascar |
2.92ct, cabochon,
chatoyancy |
|
|
|
|
lines at 465 and 477nm,
bands at 485-500 and 550-580nm |
inert |
inert |
GIA Gem Database 35633 |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
Pezzottaite |
1.593 |
1.62 |
0.007 |
0.015 |
2.91 |
3.14 |
|
|
|
|
Gemmo.eu
|
Pezzottaite |
1.594 |
1.62 |
0.007 |
0.015 |
2.9 |
3.14 |
1.594 |
1.611 |
1.605 |
1.620 |
Tables of
Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
Pezzottaite |
1.598 |
1.615 |
0.007 |
0.008 |
2.9 |
3.1 |
1.598 |
1.608 |
1.606 |
1.615 |
Gemmological Tables, Ulrich Henn,
2004 |
Pezzottaite |
1.601 |
1.619 |
0.008 |
0.009 |
3.09 |
3.14 |
1.601 |
1.610 |
1.612 |
1.619 |
Bestimmungstabellen
für Edelsteine, Birgit Günther, 2008 |
Pezzottaite |
1.601 |
1.62 |
0.019 |
0.019 |
2.67 |
2.9 |
|
|
|
|
Gemology Tools Professional 2010 |
Pezzottaite |
1.608 |
1.617 |
0.008 |
0.008 |
3.04 |
3.14 |
|
|
|
|
http://www.gemmology.be |
Pezzottaite |
1.608 |
1.618 |
0.008 |
0.015 |
2.92 |
3.3 |
1.608 |
1.610 |
1.616 |
1.618 |
http://www.geminterest.com |
CAUSE OF
COLOUR
Stone |
Colour |
Cause
of colour |
Reference |
Pezzottaite |
pink |
Mn³+ |
http://minerals.caltech.edu |
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
albite |
Pezzottaite |
E.J. Gübelin and J.I.
Koivula, Photoatlas of inclusions in Gemstones, volume 3 |
beryl |
Pezzottaite |
E.J. Gübelin and J.I.
Koivula, Photoatlas of inclusions in Gemstones, volume 3 |
galenobismutite |
Pezzottaite |
Gems & Gemology 2023
winter |
quartz |
Pezzottaite |
E.J. Gübelin and J.I.
Koivula, Photoatlas of inclusions in Gemstones, volume 3 |
tourmaline |
Pezzottaite |
E.J. Gübelin and J.I.
Koivula, Photoatlas of inclusions in Gemstones, volume 3 |
LOCALITIES
STONE |
LOCALITIES |
REFERENCE |
|||
Pezzottaite |
Deva Mine, Paroon Valley |
Kunar |
Konar (Kunar; Konarh; Konarha;
Nuristan) Province |
Afghanistan |
Lapis Extra (English) No. 7
(2005) p12 |
Pezzottaite |
Ambatovita |
Mandrosonoro area |
Fianarantsoa Province |
Madagascar |
Gems & Gemology 2003 winter p284-301 |
Pezzottaite |
Khetchel village (Cache
village; Khat Che village), Molo
quarter, Momeik Township |
Kyaukme District |
Shan State |
Myanmar |
Gems&Gemology spring 2007 p70-71 |
CHEMICAL DATA
(%)
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
FeO |
TiO2 |
CaO |
Na2O |
V2O3 |
Fe2O3 |
BeO |
K2O |
Cs2O |
Sc2O3 |
H2O |
Li2O |
Rb2O |
|
Pezzottaite |
|
|
Afghanistan |
The Journal of Gemmology
2003, Vol 28,N°7, p422 |
61,32 |
15,72 |
0,02 |
|
|
0,98 |
1,15 |
0,06 |
0,02 |
8,13 |
0,03 |
9,7 |
|
|
1,35 |
0,14 |
Pezzottaite |
|
|
Madagascar |
The Journal of Gemmology
2003, Vol 28,N°7, p422 |
58,42 |
15,62 |
|
|
|
0,19 |
0,52 |
0,09 |
0,02 |
6,28 |
0,15 |
14,31 |
|
|
1,83 |
0,39 |
Pezzottaite |
|
|
Madagascar |
The Journal of Gemmology
2003, Vol 28,N°7, p422 |
58,6 |
15,7 |
|
|
|
0,17 |
0,5 |
0,09 |
0,03 |
6,21 |
0,16 |
14,63 |
|
|
1,86 |
0,39 |
Pezzottaite |
|
Ambatovita |
Madagascar |
Gems & Gemology 2003
Winter, p284-301 |
56,77 |
15,99 |
0,11 |
|
|
|
0,41 |
|
|
8,14 |
0,11 |
13,55 |
0,03 |
1,72 |
2,16 |
0,85 |
Pezzottaite |
|
|
Madagascar |
The Journal of Gemmology
2003, Vol 28,N°7, p422 |
59,01 |
15,84 |
|
|
|
0,17 |
0,56 |
0,05 |
0,03 |
6,36 |
0,14 |
14,27 |
|
|
1,84 |
0,38 |
Pezzottaite |
|
Ambatovita |
Madagascar |
Gems & Gemology 2003
Winter, p284-301 |
54,58 |
16,88 |
0,02 |
0,02 |
0,01 |
0,22 |
0,46 |
|
|
8,14 |
0,14 |
18,23 |
|
|
2,12 |
0,44 |
Pezzottaite |
pink |
Vakinankaratra |
Madagascar |
Gems & Gemology
Spring 2025 |
56,9 |
16,45 |
0,011 |
|
0,003 |
0,4 |
0,72 |
|
0,016 |
8,53 |
0,041 |
14,58 |
|
|
2,24 |
0,13 |