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Rutile
Rutile

Nephrite
Nephrite



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Rutile
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Nephrite

Rutile and Nephrite Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous, Greasy

Pleochroism

Weak to distinct brownish red-green-yellow
None

Dispersion

0.330.01
0.005 1
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Transparency

Transparent, Translucent
Translucent

Refractive Index

2.609-2.9031.600-1.627
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
monoclinic

Birefringence

0.2960.027
0 0.296
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Clarity

Transparent
Translucent

Rutile and Nephrite Optic Character

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

Rutile and Nephrite Transparency

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