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Zinnwaldite
Zinnwaldite

Scheelite
Scheelite



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Zinnwaldite
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Scheelite

Zinnwaldite and Scheelite Optical Properties

Optical Properties

Luster

Pearly, Vitreous
Vitreous, Adamantine

Pleochroism

Distinct
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

-
Translucent, Transparent

Refractive Index

1.565-1.6251.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
tetragonal

Birefringence

0.040-0.0500.016
0 0.296
👆🏻

Clarity

-
Translucent

Zinnwaldite and Scheelite Optic Character

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

Similar to their colors, Zinnwaldite and Scheelite 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.