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Calcite
Calcite

Cat s Eye
Cat s Eye



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Calcite
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Cat s Eye

Calcite and Cat s Eye Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
-

Dispersion

0.150.02
0.005 1
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Transparency

Transparent, Translucent
Translucent

Refractive Index

1.486-1.6581.744-1.755
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.154-0.174-9999
0 0.296
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Clarity

Transparent
Translucent

Calcite and Cat s Eye Optic Character

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

Similar to their colors, Calcite and Cat s Eye 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.