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Diamond and Chalcedony Optical Properties


Chalcedony and Diamond Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
None   
AbsentWalter Schumann   

Dispersion
0.04   
10
None   

Transparency
Transparent, Translucent, Transparent to opaque   
Translucent, Translucent to opaque   

Refractive Index
2.417-2.419   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Trigonal   

Birefringence
Not Available   
0.003-0.009   

Clarity
Transparent   
Translucent   

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Diamond and Chalcedony Optic Character

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

Similar to their colors, Diamond 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, Diamond is Translucent, Transparent and Transparent to opaque while Diamond is Translucent, Transparent and Transparent to opaque in appearance.

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