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Pleonaste
Pleonaste

Nephrite
Nephrite



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Pleonaste
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Nephrite

Pleonaste and Nephrite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
None

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.7801.600-1.627
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-99990.027
0 0.296
👆🏻

Clarity

-
Translucent

Pleonaste and Nephrite Optic Character

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

Pleonaste and Nephrite Transparency

Similar to their colors, Pleonaste 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, Pleonaste is while Pleonaste is in appearance.