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Narsarsukite and Vesuvianite Idocrase Optical Properties


Vesuvianite Idocrase and Narsarsukite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow   
Not Available   

Dispersion
Not Available   
0.02   
20

Transparency
Transparent, Translucent   
Transparent   

Refractive Index
1.610-1.647   
1.700-1.725   

Optic Character
Not Available   
Uniaxial/-   

Crystal System
tetragonal   
Not Available   

Birefringence
0.021   
0.002-0.012   

Clarity
Transparent   
Transparent   

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Narsarsukite and Vesuvianite Idocrase Optic Character

Narsarsukite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Narsarsukite and Vesuvianite Idocrase 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 Narsarsukite and Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

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Narsarsukite and Vesuvianite Idocrase Transparency

Similar to their colors, Narsarsukite and Vesuvianite Idocrase 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, Narsarsukite is Translucent and Transparent while Narsarsukite is Translucent and Transparent in appearance.

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