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Charoite
Charoite

Chrysoberyl
Chrysoberyl



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Charoite
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Chrysoberyl

Charoite and Chrysoberyl Optical Properties

Optical Properties

Luster

Pearly, Chatoyant
Vitreous

Pleochroism

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

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.545-1.5601.746-1.763
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0090.007-0.013
0 0.296
👆🏻

Clarity

Translucent
Transparent

Charoite and Chrysoberyl Optic Character

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

Charoite and Chrysoberyl Transparency

Similar to their colors, Charoite 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, Charoite is Translucent while Charoite is Translucent in appearance.