Luster
Vitreous, Pearly, Resinous
Waxy, Silky, Resinous, Greasy
Pleochroism
-
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
TranslucentHerve Nicolas Lazzarelli
Refractive Index
1.540-1.5501.530-1.575
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
-
Birefringence
0.004-0.008-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli