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Peridot
Peridot

Uvarovite
Uvarovite



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Peridot
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Uvarovite

Peridot and Uvarovite 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

Refractive Index

1.64-1.691.87
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
cubic

Birefringence

0.036-9999
0 0.296
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Clarity

Transparent
Translucent

Peridot and Uvarovite Optic Character

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

Similar to their colors, Peridot and Uvarovite 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.