1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
1.4 Transparency
Not Available
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
1.5 Refractive Index
1.57-1.671.590-1.629
1
3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)
1.8 Birefringence
Not Available0.039
0
0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda