Luster
Adamantine
Vitreous
Pleochroism
visible
-
Dispersion
0.050.04
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
Transparent, Translucent
Refractive Index
2.8491.470-1.491
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Trigonal
Birefringence
-99990.021
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
Transparent