Luster
Vitreous, Pearly
Vitreous, Pearly
Pleochroism
colorless.
-
Dispersion
1.000.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.525-1.5421.554-1.573
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Triclinic
Triclinic
Birefringence
0.008-0.0110.008-0.010
0
0.296
👆🏻
Clarity
Transparent
Transparent