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Peridot
Peridot

Parisite
Parisite



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Peridot
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Parisite

Peridot and Parisite Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

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

Dispersion

0.020.03
0.005 1
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Transparency

Transparent
-

Refractive Index

1.64-1.691.671-1.771
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.0360.099-0.100
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Peridot and Parisite Optic Character

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

Similar to their colors, Peridot and Parisite 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.