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Crystal Opal and Rhodolite Optical Properties


Rhodolite and Crystal Opal Optical Properties


Optical Properties

Luster
Not Available   
Greasy, Vitreous   

Pleochroism
AbsentWalter Schumann   
None   

Dispersion
None   
None   

Transparency
Transparent   
Gemmological Tables (2004)   

Refractive Index
1.370-1.   
1.760   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
cubic   

Birefringence
Not Available   
0.010-0.014   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Crystal Opal and Rhodolite Optic Character

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

Similar to their colors, Crystal Opal and Rhodolite 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, Crystal Opal is Transparent while Crystal Opal is Transparent in appearance.

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