Luster
Vitreous
-
Pleochroism
-
-
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.720-1.7601.757-1.780
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.007-0.010
0
0.296
👆🏻
Clarity
Transparent to translucent
Transparent