|
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 |
1.601 |
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 |
|
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 |
|
|
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 |
|
|
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 |