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Chrysoberyl and Ekanite Optical Properties


Ekanite and Chrysoberyl Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
X = red; Y = yellow-orange; Z = emerald-green   
Not Available   

Dispersion
0.02   
24
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Transparent   

Refractive Index
1.746-1.763   
1.593-1.596   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Orthorhombic   
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422   

Birefringence
0.007-0.013   
0.001   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Chrysoberyl and Ekanite Optic Character

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

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

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