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Nephrite
Nephrite

Cuprite
Cuprite



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Nephrite
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Cuprite

Nephrite and Cuprite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Greasy
Adamantine
1.2 Pleochroism
None
visible
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
2.6 Transparency
Translucent
TranslucentWalter Schumann
2.8 Refractive Index
1.600-1.6272.849
Agate Opal
1 3.25
2.10 Optic Character
Not Available
Not Available
2.11 Crystal System
monoclinic
cubic
2.12 Birefringence
0.027Not Available
Achroite
0 0.296
3.4 Clarity
Translucent
TranslucentWalter Schumann

Nephrite and Cuprite Optic Character

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

Nephrite and Cuprite Transparency

Similar to their colors, Nephrite 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, Nephrite is Translucent while Nephrite is Translucent in appearance.