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Violane
Violane
☒

Gahnospinel
Gahnospinel
☒



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Violane
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Gahnospinel
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.03
Translucent
1.668-1.703
-
-
0.024-0.030
Translucent
 
Vitreous
-
0.02
-
1.735-1.790
-
Isometric
-9999
TransparentUlrich Henn and Claudio C. Milisenda

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