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Cuprite
Cuprite

Atacamite
Atacamite



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Cuprite
X
Atacamite

Cuprite and Atacamite Optical Properties

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Optical Properties

Luster

Adamantine
Adamantine, Vitreous

Pleochroism

visible
X = pale green; Y = yellow-green; Z = grass-green

Dispersion

0.050.03
0.005 1
👆🏻

Transparency

TranslucentWalter Schumann
-

Refractive Index

2.8491.831
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

-99990.049
0 0.296
👆🏻

Clarity

TranslucentWalter Schumann
-

Cuprite and Atacamite Optic Character

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

Cuprite and Atacamite Transparency

Similar to their colors, Cuprite and Atacamite 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, Cuprite is TranslucentWalter Schumann while Cuprite is TranslucentWalter Schumann in appearance.