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Polyhalite
Polyhalite

Kunzite
Kunzite



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Polyhalite
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Kunzite

Polyhalite and Kunzite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

-
Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.546-1.5481.657-1.681
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
monoclinic

Birefringence

0.0210.014-0.016
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Polyhalite and Kunzite Optic Character

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

Polyhalite and Kunzite Transparency

Similar to their colors, Polyhalite 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, Polyhalite is while Polyhalite is in appearance.