Luster
Vitreous
-
Pleochroism
DistinctArthur Thomas
-
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.643-1.7031.539-1.596
1
3.25
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Optic Character
-
-
Crystal System
-
-
Birefringence
0.0200.046-0.050
0
0.296
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Clarity
Translucent
OpaqueUlrich Henn and Claudio C. Milisenda