Luster
Waxy, Silky, Resinous, Greasy
Vitreous
Pleochroism
pale greenish yellow
Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Translucent
Transparent
Refractive Index
1.530-1.5751.657-1.681
1
3.25
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Optic Character
-
-
Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
monoclinic
Birefringence
-99990.014-0.016
0
0.296
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Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda