Luster
Vitreous
Pleochroism
O = colorless; E = purple
Dispersion
0.04
Rank: 35 (Overall)
0.005
1
👆🏻
Transparency
Transparent
Refractive Index
1.757-1.804
1
3.25
👆🏻
Optic Character
-
Crystal System
Hexagonal
Birefringence
0.047
0
0.296
👆🏻
Clarity
Transparent