Luster
-
Adamantine
Pleochroism
-
Weak to distinct brownish red-green-yellow
Dispersion
0.020.33
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.700-1.7252.609-2.903
1
3.25
👆🏻
Optic Character
Uniaxial/-
-
Crystal System
-
tetragonal
Birefringence
0.002-0.0120.296
0
0.296
👆🏻
Clarity
Transparent
Transparent