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Sapphire and Uvite Optical Properties


Uvite and Sapphire Optical Properties


Optical Properties

Luster
Vitreous, Adamantine, Vitreous, Adamantine   
Vitreous   

Pleochroism
Strong   
Pale yellow colorlessAnthony et al   

Dispersion
0.02   
21
0.02   
22

Transparency
Transparent, Translucent, Transparent to opaque   
Transparent   

Refractive Index
1.762-1.788   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.008-0.009   
0.014-0.032   

Clarity
Transparent   
Transparent   

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Sapphire and Uvite Optic Character

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

Similar to their colors, Sapphire and Uvite 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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