Chrysoberyl and Citrine Optical Properties

Chrysoberyl

Citrine

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Optical Properties

Luster

Vitreous

Pleochroism

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

Natural: weak; yellow light yellow.

Dispersion

0.020.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Transparent

Refractive Index

1.746-1.7631.544-1.553

1 3.25

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Optic Character

Biaxial/+

Crystal System

Orthorhombic

Trigonal

Birefringence

0.007-0.0130.009

0 0.296

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Clarity

Transparent

Chrysoberyl and Citrine Optic Character

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

Similar to their colors, Chrysoberyl and Citrine 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.