Optical Properties
Luster
Vitreous
Not Available
Pleochroism
AbsentWalter Schumann
Not Available
Dispersion
None
Not Available
Transparency
Opaque
Not Available
Refractive Index
1.540
Not Available
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Not Available
Birefringence
Not Available
Not Available
Clarity
OpaqueHerve Nicolas Lazzarelli
Not Available
