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Charoite and Sulphur Optical Properties


Sulphur and Charoite Optical Properties


Optical Properties

Luster
Pearly, Fibrous, Chatoyant   
Not Available   

Pleochroism
NilArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
TranslucentWalter Schumann, Gemstones of the world (2001)   

Refractive Index
1.545-1.560   
1.958-2.245   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Not Available   

Birefringence
0.009   
0.291   

Clarity
Translucent   
TranslucentWalter Schumann   

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Charoite and Sulphur Optic Character

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

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

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