Luster
Adamantine
Adamantine, Resinous
Pleochroism
Weakly pleochroic with O reddish and E greenish in thick sections.
Weak
Dispersion
0.040.03
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
2.117-2.1452.280-2.405
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
tetragonal
Birefringence
0.0270.122
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent