|
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 |
Prosopite |
1.5 |
1.5 |
|
|
2.69 |
2.85 |
blue |
Santa Rosa, Zacatecas, Mexico |
RI spot |
|
|
|
|
|
|
|
|
|
The Journal of Gemmology 1976 N°4,p |
Prosopite |
1.51 |
1.51 |
|
|
2.65 |
2.65 |
light blue |
|
cabochon |
|
|
|
|
|
|
none |
|
|
Gems & Gemology 1997 spring, p93 |
Prosopite |
1.51 |
1.51 |
|
|
2.65 |
2.65 |
turquoise blue |
|
cabochon, 9.9ct |
|
|
|
|
|
|
|
|
|
Gems & Gemology 1975 Fall, p93 |
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 |
Prosopite |
1.499 |
1.511 |
0.008 |
0.01 |
2.69 |
2.9 |
|
|
|
|
|
|
Gemmo.eu 2017 |
Prosopite |
1.5 |
1.51 |
0.009 |
0.009 |
2.88 |
2.85 |
1.500 |
1.501 |
1.503 |
1.509 |
1.509 |
1.510 |
http://www.geminterest.com |
Prosopite |
1.5 |
1.51 |
0.009 |
0.009 |
2.88 |
2.89 |
1.50 |
1.50 |
1.50 |
1.51 |
1.51 |
1.51 |
Michael O'Donoghue, Gems: Their Sources, Descriptions and Identification
(2006), 873pp |
Prosopite |
1.501 |
1.51 |
0.009 |
0.009 |
2.69 |
2.9 |
1.501 |
1.501 |
1.503 |
1.503 |
1.510 |
1.510 |
Gemmological Tables, Ulrich Henn,
2004 |
Prosopite |
1.501 |
1.51 |
0.009 |
0.009 |
2.69 |
2.85 |
|
|
|
|
|
|
http://www.gemmology.be |
Prosopite |
1.501 |
1.51 |
0.009 |
0.009 |
2.88 |
2.88 |
1.501 |
1.501 |
1.503 |
1.503 |
1.510 |
1.510 |
Joel Arem, Color Encyclopedia of Gemstones, 1987 |
Prosopite |
1.501 |
1.51 |
|
|
2.88 |
2.88 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Prosopite |
1.501 |
1.51 |
0.009 |
0.009 |
2.87 |
2.9 |
|
|
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyne, Ivo Quintens, 2007 |
Prosopite |
1.501 |
1.51 |
0.009 |
0.009 |
2.69 |
2.9 |
|
|
|
|
|
|
Gemology Tools Professional 2010 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES
CHEMICAL DATA
(%)
Stone |
Colour |
Locality |
Reference |
Al2O3 |
CaO |
CuO |
H2O |
F |
|
Prosopite |
blue |
Santa Rosa, Zacatecas |
Mexico |
The Journal of Gemmology 1976, N°4,p206 |
20.65 |
15.37 |
1.39 |
16.78 |
30.16 |