1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
1.4 Transparency
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.530-1.5751.530-1.575
1
3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not AvailableNot Available
0
0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
TranslucentHerve Nicolas Lazzarelli