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Coral
Coral

Elbaite
Elbaite



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Coral
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Elbaite

Coral and Elbaite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.03
Translucent
1.486-1.658
-
Trigonal
0.160-0.172
Translucent
 
Vitreous
Pale green
0.02
Transparent
1.614-1.666
-
Trigonal
0.014-0.032
Transparent

Coral and Elbaite Optic Character

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

Coral and Elbaite Transparency

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