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Chalcedony and Chlorapatite Optical Properties


Chlorapatite and Chalcedony Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
AbsentWalter Schumann   
Weak to moderate; in pale colors.Anthony et al   

Dispersion
None   
Not Available   

Transparency
Translucent, Translucent to opaque   
Transparent   

Refractive Index
1.530-1.543   
1.665-1.667   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.003-0.009   
Not Available   

Clarity
Translucent   
Transparent   

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Chalcedony and Chlorapatite Optic Character

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

Similar to their colors, Chalcedony and Chlorapatite 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, Chalcedony is Translucent and Translucent to opaque while Chalcedony is Translucent and Translucent to opaque in appearance.

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