Marialite and Williamsite Optical Properties

Marialite

Williamsite

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Optical Properties

Luster

Vitreous, Pearly, Resinous

Waxy, Silky, Resinous, Greasy

Pleochroism

Dispersion

0.020.03

0.005 1

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Transparency

Transparent, Translucent

TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.540-1.5501.530-1.575

1 3.25

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Optic Character

Crystal System

tetragonal

Birefringence

0.004-0.008-9999

0 0.296

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Clarity

Transparent

TranslucentHerve Nicolas Lazzarelli

Marialite and Williamsite Optic Character

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

Similar to their colors, Marialite 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, Marialite is Transparent and Translucent while Marialite is Transparent and Translucent in appearance.