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Antigorite and Nepouite Optical Properties


Nepouite and Antigorite Optical Properties


Optical Properties

Luster
Waxy, Silky, Resinous, Greasy   
Waxy, Pearly   

Pleochroism
pale greenish yellow.   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Not Available   

Refractive Index
1.530-1.575   
1.600-1.630   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm   
Orthorhombic   

Birefringence
Not Available   
Not Available   

Clarity
Translucent   
Not Available   

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Antigorite and Nepouite Optic Character

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

Similar to their colors, Antigorite and Nepouite 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, Antigorite is Translucent while Antigorite is Translucent in appearance.

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