|
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 |
Richterite |
1.599 |
1.622 |
0.023 |
0.023 |
3.11 |
3.11 |
light brownish
yellow |
Afghanistan |
1.72ct |
|
|
|
|
|
|
|
Weak yellowish
orange |
Weak
orange |
Gems & Gemology 2004 Fall,
p256 |
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 |
Richterite |
1.602 |
1.642 |
0.016 |
0.024 |
2.86 |
3.46 |
|
|
|
|
|
|
Gemmo.eu 2013
|
Richterite |
1.604 |
1.664 |
0.016 |
0.02 |
2.97 |
3.45 |
1.604 |
1.648 |
1.618 |
1.656 |
1.624 |
1.664 |
Gemmological Tables, Ulrich Henn, 2004
|
Richterite |
1.605 |
1.641 |
0.013 |
0.021 |
2.97 |
3.45 |
1.605 |
1.624 |
1.618 |
1.640 |
1.625 |
1.641 |
http://www.geminterest.com
|
Richterite |
1.605 |
1.641 |
0.017 |
0.022 |
2.97 |
3.45 |
1.605 |
1.624 |
|
|
1.627 |
1.641 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 2008
|
Richterite |
1.605 |
1.641 |
0.017 |
0.022 |
2.97 |
3.45 |
1.605 |
1.624 |
1.618 |
1.640 |
1.627 |
1.641 |
Tables of Gemstone
Identification, Roger Dedeyne, Ivo Quintens, 2007
|
Richterite |
1.615 |
1.636 |
0.021 |
0.021 |
3.09 |
3.09 |
|
|
|
|
|
|
Gemology Tools Professional 2010
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA
(%)