Kunzite and Sunstone Optical Properties

Kunzite

Sunstone

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Optical Properties

Luster

Vitreous

Pleochroism

Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli

Weak or absentWalter Schumann

Dispersion

0.020.01

0.005 1

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Transparency

Transparent

Transparent, Translucent, Transparent to translucent

Refractive Index

1.657-1.6811.53-1.55

1 3.25

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Optic Character

Crystal System

monoclinic

Triclinic

Birefringence

0.014-0.0160.007-0.010

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent to translucent

Kunzite and Sunstone Optic Character

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

Similar to their colors, Kunzite and Sunstone 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.