Luster
Vitreous, Pearly
Pleochroism
weak to none
Dispersion
0.01
Rank: 58 (Overall)
0.005
1
👆🏻
Transparency
-
Refractive Index
1.578-1.646
1
3.25
👆🏻
Optic Character
Biaxial/+
Crystal System
Triclinic
Birefringence
0.020-0.030
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda