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Sugilite
Sugilite

Kunzite
Kunzite



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Sugilite
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Kunzite

Sugilite and Kunzite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
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Transparency

Translucent
Transparent

Refractive Index

1.607-1.6121.657-1.681
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.0030.014-0.016
0 0.296
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Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Sugilite and Kunzite Optic Character

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

Sugilite and Kunzite Transparency

Similar to their colors, Sugilite and Kunzite 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, Sugilite is Translucent while Sugilite is Translucent in appearance.