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Cryolite
Cryolite
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Sylvite
Sylvite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Greasy, Pearly
colorless.
0.01
-
1.338-1.339
-
monoclinic
0.001
TransparentUlrich Henn and Claudio C. Milisenda
 
Vitreous
Visible in colored crystals
0.01
-
1.4903
-
Isometric
-9999
-

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