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Willemite
Willemite

Williamsite
Williamsite



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Willemite
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Williamsite

Willemite and Williamsite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Waxy, Silky, Resinous, Greasy

Pleochroism

-
-

Dispersion

0.170.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.687-1.7231.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.028-0.030-9999
0 0.296
👆🏻

Clarity

Transparent
TranslucentHerve Nicolas Lazzarelli

Willemite and Williamsite Optic Character

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

Similar to their colors, Willemite and Williamsite 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.