Optical Properties
Luster
Vitreous, Resinous
Vitreous, Pearly
Pleochroism
StrongArthur Thomas
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.525-1.686
1.560-1.640
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Not Available
Birefringence
0.155
0.054-0.075
Clarity
Transparent
Transparent
