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Sylvite
Sylvite

Chrysoberyl
Chrysoberyl



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Sylvite
X
Chrysoberyl

Sylvite and Chrysoberyl Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Visible in colored crystals
X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.010.02
0.005 1
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Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.49031.746-1.763
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

Isometric
Orthorhombic

Birefringence

-99990.007-0.013
0 0.296
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Clarity

-
Transparent

Sylvite and Chrysoberyl Optic Character

Sylvite and Chrysoberyl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Sylvite and Chrysoberyl 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 Chrysoberyl 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. Chrysoberyl has Biaxial/+ character.

Sylvite and Chrysoberyl Transparency

Similar to their colors, Sylvite and Chrysoberyl 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.