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Kyanite Cyprine and Pyrope Almandine Optical Properties


Pyrope Almandine and Kyanite Cyprine Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli   
AbsentWalter Schumann   

Dispersion
0.02   
18
0.02   
16

Transparency
Transparent   
TransparentGemdat.org, Management Team (2012)   

Refractive Index
1.710-1.735   
1.73-1.77   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.012-0.033   
Not Available   

Clarity
Transparent   
TransparentGemdat.org   

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Kyanite Cyprine and Pyrope Almandine Optic Character

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

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Kyanite Cyprine and Pyrope Almandine Transparency

Similar to their colors, Kyanite Cyprine and Pyrope Almandine 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 Cyprine is Transparent while Kyanite Cyprine is Transparent in appearance.

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