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Pleonast
Pleonast

Jasper
Jasper



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Pleonast
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Jasper

Pleonast and Jasper Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Opaque

Refractive Index

-99991.540
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
OpaqueHerve Nicolas Lazzarelli

Pleonast and Jasper Optic Character

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

Pleonast and Jasper Transparency

Similar to their colors, Pleonast and Jasper 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, Pleonast is while Pleonast is in appearance.