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Sylvite
Sylvite

Idocrase
Idocrase



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Sylvite
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Idocrase

Sylvite and Idocrase Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Visible in colored crystals
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.49031.67-1.76
1 3.25
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Optic Character

-
-

Crystal System

Isometric
tetragonal

Birefringence

-9999-9999
0 0.296
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Clarity

-
-

Sylvite and Idocrase Optic Character

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

Similar to their colors, Sylvite and Idocrase 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.