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Chrysoprase and Narsarsukite Optical Properties


Narsarsukite and Chrysoprase Optical Properties


Optical Properties

Luster
Vitreous, Vitreous, Waxy   
Vitreous, Pearly   

Pleochroism
AbsentWalter Schumann   
Weak; O = colorless to yellow; E = colorless to honey-yellow   

Dispersion
None   
Not Available   

Transparency
Translucent, Translucent, Opaque, Translucent to nearly opaque   
Transparent, Translucent   

Refractive Index
1.530-1.543   
1.610-1.647   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
tetragonal   

Birefringence
0.004   
0.021   

Clarity
Translucent   
Transparent   

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Chrysoprase and Narsarsukite Optic Character

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

Similar to their colors, Chrysoprase and Narsarsukite 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.

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