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Rhodolite and Coral Optical Properties


Coral and Rhodolite Optical Properties


Optical Properties

Luster
Greasy, Vitreous   
Not Available   

Pleochroism
None   
AbsentWalter Schumann   

Dispersion
None   
None   

Transparency
Gemmological Tables (2004)   
Translucent   

Refractive Index
1.760   
1.486-1.658   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Trigonal   

Birefringence
0.010-0.014   
0.160-0.172   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Translucent   

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Rhodolite and Coral Optic Character

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

Similar to their colors, Rhodolite 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, Rhodolite is Gemmological Tables (2004) while Rhodolite is Gemmological Tables (2004) in appearance.

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