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Nephrite
Nephrite

Chromite
Chromite



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Nephrite
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Chromite

Nephrite and Chromite Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

None
none.

Dispersion

0.010.04
0.005 1
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Transparency

Translucent
-

Refractive Index

1.600-1.6272.08-2.16
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Isometric

Birefringence

0.027-9999
0 0.296
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Clarity

Translucent
-

Nephrite and Chromite Optic Character

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

Similar to their colors, Nephrite and Chromite 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.