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Almandine
Almandine

Carnallite
Carnallite



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Almandine
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Carnallite

Almandine and Carnallite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
Greasy

Pleochroism

None
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.770-1.8201.467
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

-99990.0270
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Almandine and Carnallite Optic Character

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

Almandine and Carnallite Transparency

Similar to their colors, Almandine 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, Almandine is while Almandine is in appearance.