Optical Properties
Luster
Not Available
Vitreous
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Not Available
Gemmological Tables (2004)
Refractive Index
Not Available
1.719-1.739
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.014-0.016
Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
