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Kunzite
Kunzite

Nepheline
Nepheline



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Kunzite
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Nepheline

Kunzite and Nepheline Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Greasy

Pleochroism

Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli
-

Dispersion

0.020.01
0.005 1
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Transparency

Transparent
Transparent, Translucent

Refractive Index

1.657-1.6811.529-1.547
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.014-0.0160.003-0.004
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Kunzite and Nepheline Optic Character

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

Kunzite and Nepheline Transparency

Similar to their colors, Kunzite 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, Kunzite is Transparent while Kunzite is Transparent in appearance.