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Nephrite
Nephrite

Rutile
Rutile



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Nephrite
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Rutile

Nephrite and Rutile Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
Adamantine

Pleochroism

None
Weak to distinct brownish red-green-yellow

Dispersion

0.010.33
0.005 1
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Transparency

Translucent
Transparent, Translucent

Refractive Index

1.600-1.6272.609-2.903
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
tetragonal

Birefringence

0.0270.296
0 0.296
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Clarity

Translucent
Transparent

Nephrite and Rutile Optic Character

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

Similar to their colors, Nephrite and Rutile 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.