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Malachite
Malachite

Charoite
Charoite



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Malachite
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Charoite

Malachite and Charoite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Silky
Pearly, Chatoyant

Pleochroism

-
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Opaque
Translucent

Refractive Index

1.655-1.9091.545-1.560
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.2540.009
0 0.296
👆🏻

Clarity

-
Translucent

Malachite and Charoite Optic Character

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

Malachite and Charoite Transparency

Similar to their colors, Malachite and Charoite 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, Malachite is Opaque while Malachite is Opaque in appearance.