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Nephrite and Citrine Optical Properties


Citrine and Nephrite Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Vitreous   

Pleochroism
None   
Natural: weak; yellow light yellow.   

Dispersion
Not Available   
0.01   
27

Transparency
Translucent   
Transparent   

Refractive Index
1.600-1.627   
1.544-1.553   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
0.027   
0.009   

Clarity
Translucent   
Transparent   

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<< Physical Properties

Nephrite and Citrine Optic Character

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

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

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