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Natrolite and Afghanite Optical Properties


Afghanite and Natrolite Optical Properties


Optical Properties

Luster
Vitreous, Silky, Pearly   
Vitreous   

Pleochroism
NilArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Transparent, Gemstones (2009)   

Refractive Index
1.478-1.493   
1.523   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.012-0.013   
0.006   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Natrolite and Afghanite Optic Character

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

Similar to their colors, Natrolite and Afghanite 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, Natrolite is Translucent and Transparent while Natrolite is Translucent and Transparent in appearance.

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