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Shungite
Shungite

Crocoite
Crocoite



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Shungite
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Crocoite

Shungite and Crocoite Optical Properties

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Optical Properties

Luster

-
Adamantine

Pleochroism

-
Distinctly trichroic

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99992.31-2.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Shungite and Crocoite Optic Character

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

Shungite and Crocoite Transparency

Similar to their colors, Shungite and Crocoite 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, Shungite is while Shungite is in appearance.