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Pleonast
Pleonast

Sylvite
Sylvite



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Pleonast
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Sylvite

Pleonast and Sylvite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Visible in colored crystals

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.4903
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Pleonast and Sylvite Optic Character

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

Similar to their colors, Pleonast and Sylvite 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.