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Mellite
Mellite

Bronzite
Bronzite



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Mellite
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Bronzite

Mellite and Bronzite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Weak: yellowish brown yellowAnthony et al
-

Dispersion

0.010.02
0.005 1
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Transparency

-
Transparent, Translucent

Refractive Index

1.509-1.5411.668
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.0300.014
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Mellite and Bronzite Optic Character

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

Mellite and Bronzite Transparency

Similar to their colors, Mellite and Bronzite 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, Mellite is while Mellite is in appearance.