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Vlasovite
Vlasovite
☒

Alexandrite
Alexandrite
☒



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Vlasovite
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Alexandrite
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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
-
 
Vitreous
-
0.02
Transparent, Transparent to nearly opaque
1.739-1.770
Biaxial/+
Orthorhombic
0.007-0.010
Transparent

Compare Brown Gemstones

Brown Gemstones

Radiolarite
Radiolarite
Chromite
Chromite
Petrified Wood
Petrified Wood
Alexandrite
Iddingsite
Alexandrite Vs Iddingsite
Alexandrite
Vesuvianite
Alexandrite Vs Vesuvianite
Alexandrite
Pyrrhotite
Alexandrite Vs Pyrrhotite

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