Pyrite and Williamsite Optical Properties

Pyrite

Williamsite

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Optical Properties

Luster

Waxy, Silky, Resinous, Greasy

Pleochroism

Dispersion

0.040.03

0.005 1

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Transparency

OpaqueHerve Nicolas Lazzarelli

TranslucentHerve Nicolas Lazzarelli

Refractive Index

-99991.530-1.575

1 3.25

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Optic Character

Crystal System

Isometric

Birefringence

-9999-9999

0 0.296

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Clarity

OpaqueHerve Nicolas Lazzarelli

TranslucentHerve Nicolas Lazzarelli

Pyrite and Williamsite Optic Character

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

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Pyrite and Williamsite Transparency

Similar to their colors, Pyrite 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, Pyrite is OpaqueHerve Nicolas Lazzarelli while Pyrite is OpaqueHerve Nicolas Lazzarelli in appearance.