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Peridot
Peridot

Amazonite
Amazonite



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Peridot
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Amazonite

Peridot and Amazonite Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
-

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
Translucent, Translucent to opaque

Refractive Index

1.64-1.691.522-1.530
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Triclinic

Birefringence

0.0360.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Peridot and Amazonite Optic Character

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

Peridot and Amazonite Transparency

Similar to their colors, Peridot 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, Peridot is Transparent while Peridot is Transparent in appearance.