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Afghanite and Natrolite Optical Properties


Natrolite and Afghanite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Silky, Pearly   

Pleochroism
Not Available   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Gemstones (2009)   
Transparent, Translucent   

Refractive Index
1.523   
1.478-1.493   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.006   
0.012-0.013   

Clarity
Transparent   
Transparent   

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Afghanite and Natrolite Optic Character

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

Similar to their colors, Afghanite and Natrolite 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, Afghanite is Gemstones (2009) and Transparent while Afghanite is Gemstones (2009) and Transparent in appearance.

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