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Albite
Albite

Amethyst
Amethyst



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Albite
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Amethyst
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
colorless.
1.00
Transparent, Translucent
1.525-1.542
-
Triclinic
0.008-0.011
Transparent
 
Vitreous
None
0.01
Transparent, Transparent to translucent
1.544-1.553
-
Trigonal
0.009
Transparent