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Crocoite
Crocoite

Cuprite
Cuprite



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Crocoite
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Cuprite

Crocoite and Cuprite Optical Properties

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Optical Properties

Luster

Adamantine
Adamantine

Pleochroism

Distinctly trichroic
visible

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent
TranslucentWalter Schumann

Refractive Index

2.31-2.662.849
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
TranslucentWalter Schumann

Crocoite and Cuprite Optic Character

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

Crocoite and Cuprite Transparency

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