Periclase and Williamsite Optical Properties

Periclase

Williamsite

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Optical Properties

Luster

Vitreous

Waxy, Silky, Resinous, Greasy

Pleochroism

Dispersion

0.010.03

0.005 1

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Transparency

TransparentWalter Schumann

TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.735-1.7381.530-1.575

1 3.25

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Optic Character

Crystal System

Isometric

Birefringence

-9999-9999

0 0.296

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Clarity

TransparentWalter Schumann

TranslucentHerve Nicolas Lazzarelli

Periclase and Williamsite Optic Character

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

Similar to their colors, Periclase 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, Periclase is TransparentWalter Schumann while Periclase is TransparentWalter Schumann in appearance.