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Chromite
Chromite

Colemanite
Colemanite



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Chromite
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Colemanite

Chromite and Colemanite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

none.
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.08-2.161.584-1.615
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

-99990.028-0.030
0 0.296
👆🏻

Clarity

-
Transparent

Chromite and Colemanite Optic Character

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

Similar to their colors, Chromite and Colemanite 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.