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Calcite
Calcite

Crocoite
Crocoite



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Calcite
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Crocoite

Calcite and Crocoite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Adamantine

Pleochroism

-
Distinctly trichroic

Dispersion

0.150.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.486-1.6582.31-2.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.154-0.174-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Calcite and Crocoite Optic Character

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

Similar to their colors, Calcite and Crocoite 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.