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Calcite and Charoite Optical Properties


Charoite and Calcite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Pearly, Fibrous, Chatoyant   

Pleochroism
NilArthur Thomas   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.486-1.658   
1.545-1.560   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Triclinic   

Birefringence
0.154-0.174   
0.009   

Clarity
Transparent   
Translucent   

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Calcite and Charoite Optic Character

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

Similar to their colors, Calcite and Charoite 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, Calcite is Translucent and Transparent while Calcite is Translucent and Transparent in appearance.

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