Williamsite and Chrysoberyl Optical Properties

Williamsite

Chrysoberyl

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Optical Properties

Luster

Waxy, Silky, Resinous, Greasy

Vitreous

Pleochroism

X = red; Y = yellow-orange; Z = emerald-green

Dispersion

0.030.02

0.005 1

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Transparency

TranslucentHerve Nicolas Lazzarelli

Transparent, Translucent, Transparent to translucent

Refractive Index

1.530-1.5751.746-1.763

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

Birefringence

-99990.007-0.013

0 0.296

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Clarity

TranslucentHerve Nicolas Lazzarelli

Transparent

Williamsite and Chrysoberyl Optic Character

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

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Williamsite Vs Uvarovite Garnet

Williamsite Vs Analcime

Williamsite Vs Annabergite

Williamsite and Chrysoberyl Transparency

Similar to their colors, Williamsite 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, Williamsite is TranslucentHerve Nicolas Lazzarelli while Williamsite is TranslucentHerve Nicolas Lazzarelli in appearance.