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Anorthite
Anorthite

Carnallite
Carnallite



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Anorthite
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Carnallite

Anorthite and Carnallite Optical Properties

Optical Properties

Luster

Vitreous
Greasy

Pleochroism

colorless.
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.575-1.5881.467
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.012-0.0130.0270
0 0.296
👆🏻

Clarity

Transparent
-

Anorthite and Carnallite Optic Character

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

Anorthite and Carnallite Transparency

Similar to their colors, Anorthite and Carnallite 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, Anorthite is Transparent while Anorthite is Transparent in appearance.