Luster
Adamantine
Vitreous
Pleochroism
Distinctly trichroic
DistinctArthur Thomas
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
2.31-2.661.643-1.703
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
-
Birefringence
-99990.020
0
0.296
👆🏻
Clarity
Transparent
Translucent