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Linarite and Nephrite Optical Properties


Nephrite and Linarite Optical Properties


Optical Properties

Luster
Sub-Adamantine, Vitreous  
Vitreous, Greasy  

Pleochroism
X = pale blue; Y = blue; Z = Prussian blue  
None  

Dispersion
0.05  
30
0.01  
99+

Transparency
Transparent  
Translucent  

Refractive Index
1.809-1.859  
1.600-1.627  

Optic Character
-  
-  

Crystal System
monoclinic  
monoclinic  

Birefringence
0.050  
0.027  

Clarity
Transparent  
Translucent  

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Linarite and Nephrite Optic Character

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

Similar to their colors, Linarite 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, Linarite is Transparent while Linarite is Transparent in appearance.

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