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Zinnwaldite
Zinnwaldite

Pollucite
Pollucite



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Zinnwaldite
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Pollucite

Zinnwaldite and Pollucite Optical Properties

Optical Properties

Luster

Pearly, Vitreous
Vitreous, Greasy

Pleochroism

Distinct
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.565-1.6251.517-1.525
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Isometric

Birefringence

0.040-0.050-9999
0 0.296
👆🏻

Clarity

-
Transparent

Zinnwaldite and Pollucite Optic Character

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

Similar to their colors, Zinnwaldite and Pollucite 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.