Luster
Pearly
Vitreous
Pleochroism
-
visible
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.534-1.6011.696-1.702
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Triclinic
Birefringence
0.0500.005
0
0.296
👆🏻
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda