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Arfvedsonite
Arfvedsonite

Williamsite
Williamsite



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Arfvedsonite
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Williamsite

Arfvedsonite and Williamsite Optical Properties

Optical Properties

Luster

Vitreous
Waxy, Silky, Resinous, Greasy

Pleochroism

Strong: Blue-greens
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.652-1.6991.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
TranslucentHerve Nicolas Lazzarelli

Arfvedsonite and Williamsite Optic Character

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

Arfvedsonite and Williamsite Transparency

Similar to their colors, Arfvedsonite 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, Arfvedsonite is while Arfvedsonite is in appearance.