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Elbaite and Coral Optical Properties


Coral and Elbaite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Pale green   
AbsentWalter Schumann   

Dispersion
0.02   
22
None   

Transparency
Transparent   
Translucent   

Refractive Index
1.614-1.666   
1.486-1.658   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Trigonal   

Birefringence
0.014-0.032   
0.160-0.172   

Clarity
Transparent   
Translucent   

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<< Physical Properties

Elbaite and Coral Optic Character

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

Similar to their colors, Elbaite and Coral 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, Elbaite is Transparent while Elbaite is Transparent in appearance.

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