|
INVESTIGATIONS
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 |
Ussingite |
1.504 |
1.543 |
0.039 |
0.039 |
2.46 |
2.5 |
1.504 |
1.504 |
1.508 |
1.508 |
1.543 |
1.543 |
Gemmological Tables, Ulrich Henn, 2004
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)