Luster
-
Greasy, Vitreous
Pleochroism
-
None
Dispersion
-0.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.68-1.751.760
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
cubic
Birefringence
-99990.010-0.014
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda