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Sylvite
Sylvite

Elbaite
Elbaite



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Sylvite
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Elbaite

Sylvite and Elbaite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Visible in colored crystals
Pale green

Dispersion

0.010.02
0.005 1
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Transparency

-
Transparent

Refractive Index

1.49031.614-1.666
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

-99990.014-0.032
0 0.296
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Clarity

-
Transparent

Sylvite and Elbaite Optic Character

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

Similar to their colors, Sylvite and Elbaite 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.