|
INVESTIGATIONS
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Locality |
Info |
nx min |
nx max |
ny min |
ny max |
nz min |
nz max |
Spectrum |
UVS |
UVL |
Reference |
Anhydrite |
1,57 |
1,616 |
0,046 |
0,046 |
2,95 |
2,96 |
colourless, light violet,
rarely pink |
Hormoz and Qeshum
Islands, Iran |
1-5ct |
1,57 |
1,57 |
1,58 |
1,58 |
1,62 |
1,62 |
none |
inert |
inert |
Gems & Gemology 2000
Fall p262 |
Anhydrite |
1,57 |
|
|
|
3,01 |
3,01 |
purplish red |
|
9.55ct |
|
|
|
|
|
|
|
very weak yellow |
inert |
GIA Gem Database 34967 |
Anhydrite |
1,57 |
1,615 |
0,045 |
0,045 |
2,97 |
2,97 |
purple |
|
2,13ct |
|
|
|
|
|
|
|
|
|
Gems & Gemology 2023
Spring, p72 |
Anhydrite |
1,575 |
1,575 |
|
|
2,93 |
2,93 |
blue |
|
aggregate, translucent |
|
|
|
|
|
|
|
|
|
Gemmologie, Zeitschrift
der Deutschen Gemmologischen Gesellschaft 2005 Sep, p68-69 |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
nx
min |
nx max |
ny
min |
ny
max |
nz
min |
nz
max |
Reference |
Anhydrite |
1.567 |
1.618 |
0.044 |
0.046 |
2.9 |
2.98 |
1.567 |
1.574 |
1.574 |
1.579 |
1.609 |
1.618 |
Tables of
Gemstone Identification, Roger Dedeyn, Ivo Quintens, 2007 |
Anhydrite |
1.57 |
1.614 |
0.044 |
0.044 |
2.95 |
3 |
1.570 |
1.570 |
1.576 |
1.576 |
1.614 |
1.614 |
Gemmological Tables, Ulrich Henn,
2004 |
Anhydrite |
1.57 |
1.614 |
0.044 |
0.044 |
2.9 |
2.99 |
|
|
|
|
|
|
http://www.gemmology.be |
Anhydrite |
1.57 |
1.614 |
0.044 |
0.044 |
2.9 |
3 |
1.570 |
1.570 |
1.575 |
1.576 |
1.614 |
1.614 |
http://www.geminterest.com |
Anhydrite |
1.57 |
1.614 |
0.044 |
0.044 |
2.9 |
2.98 |
1.570 |
1.570 |
1.575 |
1.575 |
1.614 |
1.614 |
Joel Arem, Color
Encyclopedia of Gemstones, 1987 |
Anhydrite |
1.571 |
1.614 |
0.043 |
0.043 |
2.9 |
2.98 |
|
|
|
|
|
|
John Sinkakas,
Gemstone and mineral data book,1972 |
Anhydrite |
1.571 |
1.614 |
0.043 |
0.043 |
2.9 |
2.98 |
|
|
|
|
|
|
Gems, R Webster,
5th edition 1994 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
quartz |
Anhydrite |
Gems & Gemology Fall 2000 p262 |
LOCALITIES
STONE |
LOCALITIES |
REFERENCE |
|||
Anhydriet |
Faraday mine |
Bancroft district |
Ontario |
Canada |
The Photo-Atlas
of Minerals, Los Angeles County Museum of Natural History, CD-ROM 1998 |
Anhydriet |
Hormuz Island (Jazireh-ye Hormoz; Ormuz
Island; Jezirat Hormuz; Hormoz) |
Hormozgan |
|
Iran |
Minealien Welt 1/2002 |
Anhydriet |
Simplontunnel |
Simplon |
Wallis |
Zwitserland |
Minerals and
their Localities, Jan H.Bernhard and Jaroslav Hyrsi, 2004 |