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Moonstone
Moonstone

Peridot
Peridot



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Moonstone
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Peridot

Moonstone and Peridot Optical Properties

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Optical Properties

Luster

Pearly
Vitreous, Greasy

Pleochroism

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

Dispersion

0.010.02
0.005 1
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Transparency

Transparent, Transparent to translucent
Transparent

Refractive Index

1.518-1.5271.64-1.69
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.006-0.0070.036
0 0.296
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Clarity

Transparent
Transparent

Moonstone and Peridot Optic Character

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

Moonstone and Peridot Transparency

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