Optical Properties
Luster
Silky
Not Available
Pleochroism
Not Available
Not Available
Dispersion
None
Not Available
Transparency
Opaque
Translucent
Refractive Index
1.534-1.540
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Not Available
Birefringence
Not Available
0.008-0.010
Clarity
Gemstones of the world (2001) More from other references
Translucent
