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Calcite
Calcite

Schorl
Schorl



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Calcite
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Schorl

Calcite and Schorl Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Very strong: yellow-brown pale yellow

Dispersion

0.150.02
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.486-1.6581.635-1.672
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

0.154-0.1740.025
0 0.296
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Clarity

Transparent
Transparent

Calcite and Schorl Optic Character

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

Similar to their colors, Calcite and Schorl 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.