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Crocoite
Crocoite

Sylvite
Sylvite



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Crocoite
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Sylvite

Crocoite and Sylvite Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Distinctly trichroic
Visible in colored crystals

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

2.31-2.661.4903
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Crocoite and Sylvite Optic Character

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

Crocoite and Sylvite Transparency

Similar to their colors, Crocoite 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, Crocoite is Transparent while Crocoite is Transparent in appearance.