Luster
Vitreous
Resinous, Subadamantine
Pleochroism
Common trichroism: light green
Weak
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.668-1.7032.042-2.059
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Hexagonal
Birefringence
0.024-0.0300.010
0
0.296
👆🏻
Clarity
-
Transparent