Luster
Waxy
Vitreous
Pleochroism
-
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
TranslucentAnthony et al
Opaque
Refractive Index
1.670-1.7341.540
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TranslucentAnthony et al
OpaqueHerve Nicolas Lazzarelli