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Cuprite and Topaz Optical Properties


Topaz and Cuprite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
visible   
Weak   

Dispersion
Not Available   
0.01   
26

Transparency
TranslucentWalter Schumann   
Transparent   

Refractive Index
2.849   
1.606-1.644   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Orthorhombic   

Birefringence
Not Available   
0.008-0.011   

Clarity
TranslucentWalter Schumann   
TransparentUlrich Henn and Claudio C. Milisenda   

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Cuprite and Topaz Optic Character

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

Similar to their colors, Cuprite and Topaz 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, Cuprite is TranslucentWalter Schumann while Cuprite is TranslucentWalter Schumann in appearance.

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