Luster
Vitreous
-
Pleochroism
-
-
Dispersion
0.02-
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.735-1.7561.68-1.75
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
-
Birefringence
0.017-0.019-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-