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Sardonyx and Crystal Opal Optical Properties


Crystal Opal and Sardonyx Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Translucent   
Transparent   

Refractive Index
1.530-1.543   
1.370-1.   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.008-0.010   
Not Available   

Clarity
Translucent   
Transparent   

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<< Physical Properties

Sardonyx and Crystal Opal Optic Character

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

Similar to their colors, Sardonyx and Crystal Opal 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, Sardonyx is Translucent while Sardonyx is Translucent in appearance.

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