Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
-
Dispersion
0.020.07
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.64-1.692.05
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.0360.010
0
0.296
👆🏻
Clarity
Transparent
Transparent