Chrysoberyl and Sonolite Optical Properties

Chrysoberyl

Sonolite

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Optical Properties

Luster

Vitreous

Pleochroism

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

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

TransparentAnthony et al

Refractive Index

1.746-1.7631.763-1.793

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

Birefringence

0.007-0.013-9999

0 0.296

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Clarity

Transparent

TransparentAnthony et al

Chrysoberyl and Sonolite Optic Character

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

Similar to their colors, Chrysoberyl and Sonolite 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, Chrysoberyl is Transparent, Translucent and Transparent to translucent while Chrysoberyl is Transparent, Translucent and Transparent to translucent in appearance.