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Vlasovite
Vlasovite
☒

Opal Ethiopia
Opal Ethiopia
☒



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Vlasovite
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Opal Ethiopia
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Greasy, Vitreous, Pearly
(x): colorless. (y): colorless. (z): colorless.
0.01
-
1.607
-
monoclinic
-9999
-
 
-
-
0.01
-
1.42-1.47
-
-
-9999
-