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Charoite and Inderite Optical Properties


Inderite and Charoite Optical Properties


Optical Properties

Luster
Pearly, Fibrous, Chatoyant   
Vitreous, Pearly, Greasy   

Pleochroism
NilArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Gemmological Tables (2004)   

Refractive Index
1.545-1.560   
1.488-1.505   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Triclinic   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   

Birefringence
0.009   
0.017   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Charoite and Inderite Optic Character

Charoite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Inderite 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 Inderite 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. Inderite has Biaxial/+ character.

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Charoite and Inderite Transparency

Similar to their colors, Charoite and Inderite 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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