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Uvite and Chalcedony Optical Properties


Chalcedony and Uvite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Pale yellow colorlessAnthony et al   
AbsentWalter Schumann   

Dispersion
0.02   
22
None   

Transparency
Transparent   
Translucent, Translucent to opaque   

Refractive Index
1.614-1.666   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
0.014-0.032   
0.003-0.009   

Clarity
Transparent   
Translucent   

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Uvite and Chalcedony Optic Character

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

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Uvite and Chalcedony Transparency

Similar to their colors, Uvite and Chalcedony 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, Uvite is Transparent while Uvite is Transparent in appearance.

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