1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky, Greasy, Fibrous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
1.4 Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.590-1.6291.672-1.708
1
3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)
Not Available
1.8 Birefringence
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda