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Albite
Albite

Amethyst
Amethyst



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Albite
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Amethyst

Albite and Amethyst Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

colorless.
None

Dispersion

1.000.01
0.005 1
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Transparency

Transparent, Translucent
Transparent, Transparent to translucent

Refractive Index

1.525-1.5421.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.008-0.0110.009
0 0.296
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Clarity

Transparent
Transparent

Albite and Amethyst Optic Character

Albite and Amethyst optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Albite and Amethyst Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Albite and Amethyst optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Albite and Amethyst Transparency

Similar to their colors, Albite and Amethyst transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Albite is Transparent and Translucent while Albite is Transparent and Translucent in appearance.