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Calcite
Calcite

Chromite
Chromite



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Calcite
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Chromite

Calcite and Chromite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
-

Pleochroism

-
none.

Dispersion

0.150.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.486-1.6582.08-2.16
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Isometric

Birefringence

0.154-0.174-9999
0 0.296
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Clarity

Transparent
-

Calcite and Chromite Optic Character

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

Calcite and Chromite Transparency

Similar to their colors, Calcite and Chromite 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, Calcite is Transparent and Translucent while Calcite is Transparent and Translucent in appearance.