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Anorthite and Nepouite Optical Properties


Nepouite and Anorthite Optical Properties


Optical Properties

Luster
Vitreous   
Waxy, Pearly   

Pleochroism
colorless.   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Not Available   

Refractive Index
1.575-1.588   
1.600-1.630   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Orthorhombic   

Birefringence
0.012-0.013   
Not Available   

Clarity
Transparent   
Not Available   

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Anorthite and Nepouite Optic Character

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

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

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