Luster
Vitreous, Adamantine
Vitreous, Adamantine
Pleochroism
None
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Transparent to translucent
Transparent
Refractive Index
1.730-1.8951.738-1.745
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent