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Amazonite
Amazonite

Grossular
Grossular



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Amazonite
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Grossular

Amazonite and Grossular Optical Properties

Optical Properties

Luster

Vitreous
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.010.02
0.005 1
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Transparency

Translucent, Translucent to opaque
-

Refractive Index

1.522-1.5301.730-1.760
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
cubic

Birefringence

0.008-0.0100.020
0 0.296
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Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Amazonite and Grossular Optic Character

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

Amazonite and Grossular Transparency

Similar to their colors, Amazonite and Grossular 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, Amazonite is Translucent and Translucent to opaque while Amazonite is Translucent and Translucent to opaque in appearance.