|
INVESTIGATIONS
Stone |
RI
min |
RI
max |
Dens
min |
Dens
max |
Colour |
Location |
Info
|
Spectrum |
UVS |
UVL |
Reference |
shungite |
1.62 |
1.62 |
1.86 |
1.86 |
|
|
|
|
|
|
The Journal of Gemmology 2015 Vol 38, No 8, p675-676 |
TABLES
Stone |
RI min |
RI max |
Dens min |
Dens max |
Reference |
Shungite |
|
|
1.73 |
1.9 |
Gemmo.eu 2016 |
Shungite |
|
|
1.84 |
1.98 |
Gemmological Tables, Ulrich Henn,
2004 |
CAUSE OF
COLOUR
MINERAL
INCLUSIONS
LOCALITIES
CHEMICAL DATA