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Calcite
Calcite

Caledonite
Caledonite



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Calcite
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Caledonite

Calcite and Caledonite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Weak

Dispersion

0.150.05
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.486-1.6581.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.154-0.1740.091
0 0.296
👆🏻

Clarity

Transparent
Transparent

Calcite and Caledonite Optic Character

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

Calcite and Caledonite Transparency

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