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Carnallite
Carnallite

Aventurine
Aventurine



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Carnallite
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Aventurine

Carnallite and Aventurine Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Greasy
-
0.02
-
1.467
-
Orthorhombic
0.0270
-
 
Vitreous
-
0.01
Translucent, Opaque . May be translucent when backlit on the edges.
1.544-1.553
-
Trigonal
0.007-0.010
Translucent

Carnallite and Aventurine Optic Character

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

Carnallite and Aventurine Transparency

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