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Charoite and Andradite Garnet Optical Properties


Andradite Garnet and Charoite Optical Properties


Optical Properties

Luster
Pearly, Fibrous, Chatoyant   
Adamantine   

Pleochroism
NilArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Transparent, Opaque, Transparent to opaque   

Refractive Index
1.545-1.560   
1.888-1.889   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Isometric   

Birefringence
0.009   
Not Available   

Clarity
Translucent   
Transparent to opaque   

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<< Physical Properties

Charoite and Andradite Garnet Optic Character

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

Similar to their colors, Charoite and Andradite Garnet 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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