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Willemite
Willemite

Scheelite
Scheelite



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Willemite
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Scheelite

Willemite and Scheelite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Adamantine

Pleochroism

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

Dispersion

0.170.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent, Transparent

Refractive Index

1.687-1.7231.918-1.936
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
tetragonal

Birefringence

0.028-0.0300.016
0 0.296
👆🏻

Clarity

Transparent
Translucent

Willemite and Scheelite Optic Character

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

Willemite and Scheelite Transparency

Similar to their colors, Willemite 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, Willemite is Transparent and Translucent while Willemite is Transparent and Translucent in appearance.