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Kyanite and Rossmanite Optical Properties


Rossmanite and Kyanite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
Trichroic   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
TransparentWebmineral.com, Mineralogy Database (2012)   

Refractive Index
1.71-1.74   
1.624-1.645   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Not Available   

Birefringence
Not Available   
0.021   

Clarity
Color grading system   
TransparentWebmineral.com   

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Kyanite and Rossmanite Optic Character

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

Similar to their colors, Kyanite and Rossmanite 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, Kyanite is Not Available while Kyanite is Not Available in appearance.

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