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Weloganite and Nepheline Optical Properties


Nepheline and Weloganite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Greasy   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent, Translucent   

Refractive Index
1.558   
1.529-1.547   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Hexagonal   

Birefringence
0.082   
0.003-0.004   

Clarity
Not Available   
Transparent   

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Weloganite and Nepheline Optic Character

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

Similar to their colors, Weloganite and Nepheline 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, Weloganite is Not Available while Weloganite is Not Available in appearance.

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