Luster
Pleochroism
Dispersion
Transparency
Refractive Index
Optic Character
Crystal System
Birefringence
Clarity
X = colorless; Y = pale yellow; Z = golden yellow
Weak: pink pale pinkHerve Nicolas Lazzarelli
Transparent, Translucent, Transparent to translucent
TranslucentHerve Nicolas Lazzarelli