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Malachite
Malachite

Pearl
Pearl



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Malachite
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Pearl

Malachite and Pearl Optical Properties

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Optical Properties

Luster

Adamantine, Vitreous, Silky
Pearly

Pleochroism

-
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

Opaque
Translucent, Opaque

Refractive Index

1.655-1.9091.52-1.66
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.2540.156
0 0.296
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Clarity

-
Translucent

Malachite and Pearl Optic Character

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

Similar to their colors, Malachite and Pearl 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.