|
INVESTIGATIONS
|
Stone |
RI min |
RI max |
Dens min |
Dens max |
Colour |
Location |
Info |
Spectrum |
UVS |
UVL |
Reference |
|
Bismuth Germanium Oxide
artificial product |
|
|
7.12 |
7.12 |
yellow |
|
2.3 ct |
|
strong greenish
yellow |
inert |
ACAM lab
4389 |
TABLES
|
Stone |
RI min |
RI max |
Dens min |
Dens max |
Reference |
|
Bismuth Germanium Oxide
artificial product |
2.07 |
2.07 |
7.12 |
7.12 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 1981
|
|
Bismuth Germanium Oxide
artificial product |
2.07 |
2.07 |
7.12 |
7.12 |
Tables of Gemstone
Identification, Roger Dedeyne, Ivo Quintens, 2007
|
CAUSE OF COLOUR