Pleochroism
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli
Visible in colored crystals
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent, Transparent to translucent
Not Available
Refractive Index
1.573-1.600
1.4903
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
0.005-0.009
Not Available
Clarity
Transparent to translucent
Not Available