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Quartz and Kyanite Optical Properties


Kyanite and Quartz Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
None   
Trichroic   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Not Available   

Refractive Index
1.544-1.553   
1.71-1.74   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Triclinic   

Birefringence
0.009   
Not Available   

Clarity
Opaque   
Color grading system   

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Quartz and Kyanite Optic Character

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

Similar to their colors, Quartz and Kyanite 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, Quartz is Translucent, Transparent and Transparent to translucent while Quartz is Translucent, Transparent and Transparent to translucent in appearance.

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