|
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 |
Sulfoborite |
1.532 |
1.55 |
0.018 |
0.018 |
2.44 |
2.46 |
|
Inder,
Kazakhstan |
|
|
|
|
|
|
|
|
inert |
inert |
Gems & Gemology 2003 winter p
336 |
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 |
Sulfoborite |
1.527 |
1.552 |
0.024 |
0.024 |
2.38 |
2.46 |
1.527 |
1.532 |
|
|
1.544 |
1.552 |
Tables of Gemstone Identification, Roger Dedeyn,
Ivo Quintens, 2007
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)