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Cerussite and Nephrite Optical Properties


Nephrite and Cerussite Optical Properties


Optical Properties

Luster
Adamantine, Vitreous, Resinous   
Vitreous, Greasy   

Pleochroism
AbsentWalter Schumann   
None   

Dispersion
0.06   
8
Not Available   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.803-2.078   
1.600-1.627   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.273   
0.027   

Clarity
Transparent   
Translucent   

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Cerussite and Nephrite Optic Character

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

Similar to their colors, Cerussite and Nephrite 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, Cerussite is Translucent and Transparent while Cerussite is Translucent and Transparent in appearance.

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