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Carnallite
Carnallite

Idocrase
Idocrase



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Carnallite
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Idocrase

Carnallite and Idocrase Optical Properties

Optical Properties

Luster

Greasy
-

Pleochroism

-
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.4671.67-1.76
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.0270-9999
0 0.296
👆🏻

Clarity

-
-

Carnallite and Idocrase Optic Character

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

Similar to their colors, Carnallite and Idocrase 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.