|
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 |
Stichtite |
1.52 |
1.55 |
|
|
2.13 |
2.13 |
|
|
cabochon |
|
|
|
|
Cr-spectrum |
inert |
inert |
Gems & Gemology 2003 fall p 220 |
Stichtite |
1.53 |
1.53 |
|
|
2.15 |
2.22 |
lilac |
South Africa |
cabochon, RI by distant vision method |
|
|
|
|
Cr lines |
|
|
Gems & Gemology 1955 Spring,
p149-150,156 |
Stichtite |
1.54 |
|
|
|
2.11 |
2.11 |
pinkish purple |
South Africa |
1.70ct, opaque, faint RI |
|
|
|
|
|
inert |
inert |
The Journal of Gemmology 2017 Vol35, N°5, p395-396 |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
Stichtite |
1.516 |
1.544 |
0.026 |
0.026 |
2.16 |
2.2 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
Stichtite |
1.516 |
1.55 |
0.026 |
0.027 |
2.16 |
2.26 |
1.516 |
1.520 |
1.540 |
1.550 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Stichtite |
1.516 |
1.544 |
0.024 |
0.028 |
2.11 |
2.2 |
1.516 |
1.516 |
1.540 |
1.544 |
Gemmological Tables, Ulrich Henn,
2004 |
Stichtite |
1.518 |
1.545 |
0.027 |
0.027 |
2.16 |
2.22 |
|
|
|
|
http://www.gemmology.be |
Stichtite |
1.518 |
1.545 |
0.027 |
0.027 |
2.16 |
2.22 |
1.518 |
1.518 |
1.545 |
1.545 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Stichtite |
1.518 |
1.545 |
0.027 |
0.027 |
2.16 |
2.22 |
1.518 |
1.518 |
1.545 |
1.545 |
http://www.geminterest.com |
Stichtite |
1.518 |
1.545 |
0.027 |
0.027 |
2.16 |
2.22 |
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyn, Ivo
Quintens, 2007 |
Stichtite |
1.52 |
1.55 |
0.027 |
0.027 |
2.15 |
2.22 |
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Stichtite |
1.52 |
1.55 |
0.027 |
0.027 |
2.15 |
2.22 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Stichtite |
1.54 |
1.54 |
|
|
2.15 |
2.2 |
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES
CHEMICAL DATA
(%)