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Axinite
Axinite

Carnallite
Carnallite



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Axinite
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Carnallite

Axinite and Carnallite Optical Properties

Optical Properties

Luster

Vitreous
Greasy

Pleochroism

Strong
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.656-1.7041.467
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.009-0.0120.0270
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Axinite and Carnallite Optic Character

Axinite and Carnallite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Axinite 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 Axinite 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. Axinite has Biaxial/+ character.

Axinite and Carnallite Transparency

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