Nepheline and Aqua Aura Optical Properties

Nepheline

Aqua Aura

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

Not Available

1.5 Refractive Index

1.529-1.547Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Trigonal

1.8 Birefringence

0.003-0.004Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Nepheline and Aqua Aura Optic Character

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

Similar to their colors, Nepheline and Aqua Aura 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.