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Nepheline
Nepheline

Padparadscha
Padparadscha



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Nepheline
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Padparadscha

Nepheline and Padparadscha Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Greasy
-
0.01
Transparent, Translucent
1.529-1.547
-
Hexagonal
0.003-0.004
Transparent
 
-
-
0.02
Transparent, Translucent
1.757-1.780
-
-
0.007-0.010
Transparent

Nepheline and Padparadscha Optic Character

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

Nepheline and Padparadscha Transparency

Similar to their colors, Nepheline and Padparadscha 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, Nepheline is while Nepheline is in appearance.