Optical Properties
Luster
Not Available
Vitreous
Pleochroism
Not Available
Very weak: light green pale greenWalter Schumann
Dispersion
Not Available
0.01
27
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.48-1.70
1.544-1.553
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.009
Clarity
Transparent
Transparent
