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Kyanite Cyprine and Omphacite Optical Properties


Omphacite and Kyanite Cyprine Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

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

Dispersion
0.02   
18
Not Available   

Transparency
Transparent   
TranslucentAnthony et al, Handbook of mineralogy (2001)   

Refractive Index
1.710-1.735   
1.662-1.723   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.012-0.033   
Not Available   

Clarity
Transparent   
TranslucentAnthony et al   

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Kyanite Cyprine and Omphacite Optic Character

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

Similar to their colors, Kyanite Cyprine and Omphacite 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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Green Gemstones


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