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Sapphire and Rhodizite Optical Properties


Rhodizite and Sapphire Optical Properties


Optical Properties

Luster
Vitreous, Adamantine, Vitreous, Adamantine   
Adamantine   

Pleochroism
Strong   
Not Available   

Dispersion
0.02   
21
Not Available   

Transparency
Transparent, Translucent, Transparent to opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
1.762-1.788   
1.684-1.694   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.008-0.009   
Not Available   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Sapphire and Rhodizite Optic Character

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

Similar to their colors, Sapphire and Rhodizite 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, Sapphire is Translucent, Transparent and Transparent to opaque while Sapphire is Translucent, Transparent and Transparent to opaque in appearance.

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