Musgravite and Bowenite Optical Properties

Musgravite

Bowenite

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1 Optical Properties

1.1 Luster

Vitreous

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

1.5 Refractive Index

1.719-1.7391.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.014-0.016Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TranslucentHerve Nicolas Lazzarelli

Musgravite and Bowenite Optic Character

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

Similar to their colors, Musgravite and Bowenite 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, Musgravite is Gemmological Tables (2004) while Musgravite is Gemmological Tables (2004) in appearance.