Optical Properties
Luster
Not Available
Not Available
Pleochroism
Strong: dark green yellow
Not Available
Dispersion
0.02
22
Not Available
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.614-1.666
1.668
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.014-0.040
0.014
Clarity
Transparent
Transparent
