Luster
-
-
Pleochroism
-
Definite: brown reddish-brownWalter Schumann
Dispersion
-0.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
-99991.544-1.553
1
3.25
👆🏻
Optic Character
-
-
Crystal System
face-centered cubic (fcc)
-
Birefringence
-99990.009
0
0.296
👆🏻
Clarity
-
Transparent