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Chromite
Chromite

Mellite
Mellite



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Chromite
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Mellite

Chromite and Mellite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
none.
0.04
-
2.08-2.16
-
Isometric
-9999
-
 
Vitreous
Weak: yellowish brown yellowAnthony et al
0.01
-
1.509-1.541
-
-
0.030
TransparentUlrich Henn and Claudio C. Milisenda

Chromite and Mellite Optic Character

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

Chromite and Mellite Transparency

Similar to their colors, Chromite 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, Chromite is while Chromite is in appearance.