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Piemontite and Chalcedony Optical Properties


Chalcedony and Piemontite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
visible   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Not Available   
Translucent, Translucent to opaque   

Refractive Index
1.725-1.756   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
0.025-0.076   
0.003-0.009   

Clarity
Not Available   
Translucent   

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Piemontite and Chalcedony Optic Character

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

Similar to their colors, Piemontite 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, Piemontite is Not Available while Piemontite is Not Available in appearance.

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