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Chromite
Chromite

Powellite
Powellite



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Chromite
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Powellite

Chromite and Powellite Optical Properties

Optical Properties

Luster

-
Greasy, Subadamantine

Pleochroism

none.
In deeply colored specimens: blue greenAnthony et al

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.08-2.161.974-1.984
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Chromite and Powellite Optic Character

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

Similar to their colors, Chromite and Powellite 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.