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Chiastolite and Sugilite Optical Properties


Sugilite and Chiastolite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Translucent   

Refractive Index
1.627-1.645   
1.607-1.612   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Hexagonal   

Birefringence
0.007-0.013   
0.003   

Clarity
Translucent   
Translucent   

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Chiastolite and Sugilite Optic Character

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

Similar to their colors, Chiastolite and Sugilite 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, Chiastolite is Translucent while Chiastolite is Translucent in appearance.

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