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Black Opal and Uvarovite Optical Properties


Uvarovite and Black Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
0.01   
26

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.370-1.470   
1.87   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
cubic   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
Translucent   

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Black Opal and Uvarovite Optic Character

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

Similar to their colors, Black Opal and Uvarovite 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, Black Opal is Translucent and Transparent while Black Opal is Translucent and Transparent in appearance.

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