|
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 |
|
Phosgenite |
|
|
|
|
6.09 |
6.12 |
yellow-brownish |
Morocco |
up to 78ct |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 1997 Jun, p65 |
|
Phosgenite |
|
|
|
|
6.13 |
6.13 |
colourless |
|
10.28 ct, RI is OTL |
|
|
|
|
|
strong yellow |
|
Gems & Gemology 1977 Summer, p295 |
|
Phosgenite |
|
|
|
|
6.14 |
6.14 |
brownish orangy yellow |
|
16.48ct |
|
|
|
|
no features |
inert |
very weak yellow |
GIA Gem Database 35478 |
|
Phosgenite |
|
|
|
|
6.18 |
6.18 |
yellowish orange |
Touissit, Morocco |
25.56ct |
|
|
|
|
broad absorption below 430nm and above 670nm |
inert |
inert |
GIA Gem Database 35466 |
TABLES
|
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
ne min |
ne max |
no min |
no max |
Reference |
|
Phosgenite |
2.114 |
2.14 |
0.026 |
0.026 |
6.13 |
6.13 |
|
|
|
|
John Sinkakas, Gemstone and mineral data book,1972 |
|
Phosgenite |
2.114 |
2.145 |
0.028 |
0.028 |
6.13 |
6.13 |
|
|
|
|
http://www.gemmology.be |
|
Phosgenite |
2.114 |
2.14 |
0.026 |
0.026 |
6.2 |
6.2 |
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
|
Phosgenite |
2.114 |
2.14 |
0.026 |
0.026 |
6.2 |
6.2 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
|
Phosgenite |
2.114 |
2.145 |
0.028 |
0.028 |
6.13 |
6.2 |
2.140 |
2.145 |
2.114 |
2.118 |
Tables of Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
|
Phosgenite |
2.114 |
2.145 |
0.028 |
0.028 |
6 |
6.3 |
|
|
|
|
Gemology Tools Professional 2010 |
|
Phosgenite |
2.117 |
2.145 |
0.028 |
0.028 |
6.13 |
6.13 |
2.145 |
2.145 |
2.117 |
2.117 |
Gemmological Tables, Ulrich Henn,
2004 |
|
Phosgenite |
2.117 |
2.145 |
0.028 |
0.028 |
6.09 |
6.2 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 2008 |
|
Phosgenite |
2.117 |
2.146 |
0.027 |
0.029 |
6.03 |
6.2 |
|
|
|
|
Gemmo.eu 2019 |
|
Phosgenite |
2.118 |
2.145 |
0.028 |
0.028 |
6.12 |
6.12 |
|
|
|
|
Michael O'Donoghue, Gems: Their Sources, Descriptions and Identification
(2006), 873pp |
|
Phosgenite |
2.14 |
2.118 |
0.028 |
0.028 |
6 |
6.3 |
2.140 |
2.145 |
2.114 |
2.118 |
http://www.geminterest.com |
|
Phosgenite |
|
|
0.028 |
0.028 |
6.13 |
6.13 |
2.140 |
2.145 |
2.114 |
2.118 |
Joel Arem, Color Encyclopedia of Gemstones, 1987 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES
CHEMICAL DATA
(%)