Luster
Vitreous
Waxy, Silky, Resinous, Greasy
Pleochroism
-
-
Dispersion
0.030.01
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
TranslucentHerve Nicolas Lazzarelli
Refractive Index
1.720-1.7601.530-1.575
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent to translucent
TranslucentHerve Nicolas Lazzarelli