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Kyanite and Peridot Optical Properties


Peridot and Kyanite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous, Greasy   

Pleochroism
Trichroic   
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli   

Dispersion
Not Available   
0.02   
18

Transparency
Not Available   
Transparent   

Refractive Index
1.71-1.74   
1.64-1.69   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Orthorhombic   

Birefringence
Not Available   
0.036   

Clarity
Color grading system   
Transparent   

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Kyanite and Peridot Optic Character

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

Similar to their colors, Kyanite and Peridot 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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