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Cuprite
Cuprite

Sapphire
Sapphire



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Cuprite
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Sapphire

Cuprite and Sapphire Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous, Adamantine

Pleochroism

visible
Strong

Dispersion

0.050.02
0.005 1
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Transparency

TranslucentWalter Schumann
Transparent, Translucent, Transparent to opaque

Refractive Index

2.8491.762-1.788
1 3.25
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Optic Character

-
-

Crystal System

cubic
Trigonal

Birefringence

-99990.008-0.009
0 0.296
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Clarity

TranslucentWalter Schumann
Transparent

Cuprite and Sapphire Optic Character

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

Similar to their colors, Cuprite and Sapphire 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.