Luster
-
Greasy, Vitreous
Pleochroism
-
None
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.370-1.4701.720-1.756
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
cubic
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda