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Sylvite
Sylvite

Pearl
Pearl



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Sylvite
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Pearl

Sylvite and Pearl Optical Properties

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Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Visible in colored crystals
-

Dispersion

0.010.03
0.005 1
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Transparency

-
Translucent, Opaque

Refractive Index

1.49031.52-1.66
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

-99990.156
0 0.296
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Clarity

-
Translucent

Sylvite and Pearl Optic Character

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

Sylvite and Pearl Transparency

Similar to their colors, Sylvite and Pearl 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, Sylvite is while Sylvite is in appearance.