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Chrysocolla and Chalcedony Optical Properties


Chalcedony and Chrysocolla Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Vitreous   

Pleochroism
AbsentWalter Schumann   
AbsentWalter Schumann   

Dispersion
None   
None   

Transparency
Opaque   
Translucent, Translucent to opaque   

Refractive Index
1.460-1.570   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
0.023-0.050   
0.003-0.009   

Clarity
Gemmological Tables (2004) More from other references   
Translucent   

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Chrysocolla and Chalcedony Optic Character

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

Similar to their colors, Chrysocolla 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, Chrysocolla is Opaque while Chrysocolla is Opaque in appearance.

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