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Nepheline
Nepheline

Smoky Quartz
Smoky Quartz



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Nepheline
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Smoky Quartz

Nepheline and Smoky Quartz Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.529-1.5471.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Hexagonal
1.8 Birefringence
0.003-0.0040.009
Achroite
0 0.296
1.9 Clarity
Transparent
Opaque

Nepheline and Smoky Quartz Optic Character

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

Similar to their colors, Nepheline and Smoky Quartz 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 Translucent and Transparent while Nepheline is Translucent and Transparent in appearance.