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Idocrase
Idocrase

Peridot
Peridot



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Idocrase
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Peridot

Idocrase and Peridot Optical Properties

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Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

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

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.67-1.761.64-1.69
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Orthorhombic

Birefringence

-99990.036
0 0.296
👆🏻

Clarity

-
Transparent

Idocrase and Peridot Optic Character

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

Idocrase and Peridot Transparency

Similar to their colors, Idocrase 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, Idocrase is while Idocrase is in appearance.