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Anorthite
Anorthite

Amazonite
Amazonite



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Anorthite
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Amazonite

Anorthite and Amazonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

colorless.
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
Translucent, Translucent to opaque

Refractive Index

1.575-1.5881.522-1.530
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
Triclinic

Birefringence

0.012-0.0130.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Anorthite and Amazonite Optic Character

Anorthite and Amazonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anorthite and Amazonite 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 Anorthite and Amazonite 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.

Anorthite and Amazonite Transparency

Similar to their colors, Anorthite and Amazonite 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, Anorthite is Transparent while Anorthite is Transparent in appearance.