Williamsite and Phenakite Optical Properties

Williamsite

Phenakite

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Optical Properties

Luster

Waxy, Silky, Resinous, Greasy

Vitreous

Pleochroism

Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.030.02

0.005 1

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Transparency

TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.530-1.5751.650-1.695

1 3.25

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Optic Character

Crystal System

Trigonal

Birefringence

-99990.016

0 0.296

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Clarity

TranslucentHerve Nicolas Lazzarelli

TransparentUlrich Henn and Claudio C. Milisenda

Williamsite and Phenakite Optic Character

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

Similar to their colors, Williamsite and Phenakite 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, Williamsite is TranslucentHerve Nicolas Lazzarelli while Williamsite is TranslucentHerve Nicolas Lazzarelli in appearance.