Luster
Vitreous
Vitreous
Pleochroism
Strong dichroism: yellow green Lazzarelli
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Opaque
Refractive Index
1.565-1.6021.540
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Trigonal
Birefringence
0.0040-0.0070-9999
0
0.296
👆🏻
Clarity
-
OpaqueHerve Nicolas Lazzarelli