Bowenite and Mellite Optical Properties

Bowenite

Mellite

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Optical Properties

Luster

Waxy, Silky, Resinous, Greasy

Vitreous

Pleochroism

Weak: yellowish brown yellowAnthony et al

Dispersion

0.010.01

0.005 1

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Transparency

TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.530-1.5751.509-1.541

1 3.25

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Optic Character

Crystal System

Birefringence

-99990.030

0 0.296

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Clarity

TranslucentHerve Nicolas Lazzarelli

TransparentUlrich Henn and Claudio C. Milisenda

Bowenite and Mellite Optic Character

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

Similar to their colors, Bowenite and Mellite 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, Bowenite is TranslucentHerve Nicolas Lazzarelli while Bowenite is TranslucentHerve Nicolas Lazzarelli in appearance.