|
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 |
Leucophanite |
1.565 |
1.593 |
0.028 |
0.028 |
2.97 |
3.06 |
1.57 |
1.57 |
1.59 |
1.59 |
1.59 |
1.59 |
Gemmological Tables, Ulrich Henn, 2004
|
CAUSE OF COLOUR
MINERAL INCLUSIONS
LOCALITIES
CHEMICAL DATA (%)