Cuprite and Williamsite Optical Properties

Cuprite

Williamsite

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Optical Properties

Luster

Adamantine

Waxy, Silky, Resinous, Greasy

Pleochroism

visible

Dispersion

0.050.03

0.005 1

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Transparency

TranslucentWalter Schumann

TranslucentHerve Nicolas Lazzarelli

Refractive Index

2.8491.530-1.575

1 3.25

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Optic Character

Crystal System

cubic

Birefringence

-9999-9999

0 0.296

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Clarity

TranslucentWalter Schumann

TranslucentHerve Nicolas Lazzarelli

Cuprite and Williamsite Optic Character

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

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Cuprite and Williamsite Transparency

Similar to their colors, Cuprite and Williamsite 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.