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Kunzite
Kunzite

Neptunite
Neptunite



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Kunzite
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Neptunite

Kunzite and Neptunite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli
x=yellow-orange

Dispersion

0.020.03
0.005 1
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Transparency

Transparent
Translucent

Refractive Index

1.657-1.6811.692-1.734
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.014-0.0160.0294-0.0452
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Kunzite and Neptunite Optic Character

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

Similar to their colors, Kunzite and Neptunite 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.