Optical Properties
Luster
Vitreous, Pearly
Waxy, Silky, Resinous, Greasy
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Not Available
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Refractive Index
1.530-1.536
1.530-1.575
Optic Character
Not Available
Not Available
Crystal System
tetragonal
Not Available
Birefringence
Not Available
Not Available
Clarity
Not Available
TranslucentHerve Nicolas Lazzarelli
