|
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 |
Bahianite |
|
|
|
|
5.18 |
5.18 |
brown |
|
0.73ct, translucent, RI OTL |
|
|
|
|
|
|
|
very weak blue |
inert |
Gems & Gemology 2016 Spring, p 68 |
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 |
Bahianite |
1.805 |
1.925 |
0.105 |
0.115 |
4.78 |
5.5 |
|
|
|
|
|
|
Gemmo.eu 2013 |
Bahianite |
1.81 |
1.92 |
0.11 |
0.11 |
4.89 |
5.16 |
|
|
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES
STONE |
LOCALITIES |
REFERENCE |
|||
Bahianite |
Garimpo do Morro do Chapeu (Rio do Pico das Almas) |
Erico Cardoso (Old Agua Quente) |
Bahia |
Brazil |
J. and J. Cassedanne : Bull. Mineral., 1980, 103, pp 600-602 |
CHEMICAL DATA