Luster
Vitreous, Pearly
Vitreous
Pleochroism
None
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Opaque
Refractive Index
1.37-1.521.540
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Trigonal
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli