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Biotite
Biotite

Kunzite
Kunzite



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Biotite
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Kunzite

Biotite and Kunzite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Strong
Strong trichroism: colorless pink violetHerve Nicolas Lazzarelli

Dispersion

-0.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.565-1.6251.657-1.681
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.03-0.070.014-0.016
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Biotite and Kunzite Optic Character

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

Biotite and Kunzite Transparency

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