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Pleonast
Pleonast

Charoite
Charoite



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Pleonast
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Charoite

Pleonast and Charoite Optical Properties

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Optical Properties

Luster

-
Pearly, Chatoyant

Pleochroism

-
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

-99991.545-1.560
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

-
Translucent

Pleonast and Charoite Optic Character

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

Similar to their colors, Pleonast and Charoite 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.