Luster
Vitreous
Pleochroism
Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli
Dispersion
0.02
Rank: 54 (Overall)
0.005
1
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Transparency
Transparent
Refractive Index
1.657-1.681
1
3.25
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Optic Character
-
Crystal System
monoclinic
Birefringence
0.014-0.016
0
0.296
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda