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Zinnwaldite
Zinnwaldite

Pyroxmangite
Pyroxmangite



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Zinnwaldite
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Pyroxmangite

Zinnwaldite and Pyroxmangite Optical Properties

Optical Properties

Luster

Pearly, Vitreous
Vitreous

Pleochroism

Distinct
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.565-1.6251.735-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.040-0.0500.017-0.019
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Zinnwaldite and Pyroxmangite Optic Character

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

Zinnwaldite and Pyroxmangite Transparency

Similar to their colors, Zinnwaldite and Pyroxmangite 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, Zinnwaldite is while Zinnwaldite is in appearance.