Luster
Vitreous
Vitreous
Pleochroism
-
-
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.720-1.7601.780-1.810
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent to translucent
Transparent to translucent