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Cuprite
Cuprite

Apophyllite
Apophyllite



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Cuprite
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Apophyllite

Cuprite and Apophyllite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Pearly

Pleochroism

visible
Dichroic (colorless)

Dispersion

0.050.01
0.005 1
👆🏻

Transparency

TranslucentWalter Schumann
Transparent, Translucent

Refractive Index

2.8491.530-1.543
1 3.25
👆🏻

Optic Character

-
Uniaxial/-

Crystal System

cubic
tetragonal

Birefringence

-99990.000-0.003
0 0.296
👆🏻

Clarity

TranslucentWalter Schumann
Transparent

Cuprite and Apophyllite Optic Character

Cuprite and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cuprite and Apophyllite 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 Apophyllite 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. Apophyllite has Uniaxial/- character.

Cuprite and Apophyllite Transparency

Similar to their colors, Cuprite and Apophyllite 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.