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Coral and Kornerupine Optical Properties


Kornerupine and Coral Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
X = colorless to green; Y = colorless   

Dispersion
None   
0.02   
21

Transparency
Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.486-1.658   
1.660-1.685   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.160-0.172   
0.012-0.017   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Coral and Kornerupine Optic Character

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

Similar to their colors, Coral and Kornerupine 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, Coral is Translucent while Coral is Translucent in appearance.

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