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Malachite
Malachite

Anorthite
Anorthite



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Malachite
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Anorthite

Malachite and Anorthite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Silky
Vitreous

Pleochroism

-
colorless.

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Opaque
Transparent

Refractive Index

1.655-1.9091.575-1.588
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.2540.012-0.013
0 0.296
👆🏻

Clarity

-
Transparent

Malachite and Anorthite Optic Character

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

Similar to their colors, Malachite and Anorthite 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.