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Nephrite
Nephrite

Periclase
Periclase



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Nephrite
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Periclase

Nephrite and Periclase Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

None
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
TransparentWalter Schumann

Refractive Index

1.600-1.6271.735-1.738
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Isometric

Birefringence

0.027-9999
0 0.296
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Clarity

Translucent
TransparentWalter Schumann

Nephrite and Periclase Optic Character

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

Similar to their colors, Nephrite and Periclase 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.