Luster
-
-
Pleochroism
Weak to moderate; in pale colors.
-
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.665-1.6671.72-1.82
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
-