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Grossular
Grossular

Cuprite
Cuprite



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Grossular
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Cuprite

Grossular and Cuprite Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Adamantine

Pleochroism

None
visible

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

-
TranslucentWalter Schumann

Refractive Index

1.730-1.7602.849
1 3.25
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Optic Character

-
-

Crystal System

cubic
cubic

Birefringence

0.020-9999
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TranslucentWalter Schumann

Grossular and Cuprite Optic Character

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

Grossular and Cuprite Transparency

Similar to their colors, Grossular 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, Grossular is while Grossular is in appearance.