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Crocoite
Crocoite

Caledonite
Caledonite



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Crocoite
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Caledonite

Crocoite and Caledonite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Distinctly trichroic
Weak

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

2.31-2.661.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.091
0 0.296
👆🏻

Clarity

Transparent
Transparent

Crocoite and Caledonite Optic Character

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

Crocoite and Caledonite Transparency

Similar to their colors, Crocoite and Caledonite 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, Crocoite is Transparent while Crocoite is Transparent in appearance.