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Malachite
Malachite

Turquoise
Turquoise



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Malachite
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Turquoise

Malachite and Turquoise Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Silky
Waxy

Pleochroism

-
Weak

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

Opaque
Translucent, Opaque

Refractive Index

1.655-1.9091.610-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

0.2540.040
0 0.296
👆🏻

Clarity

-
Translucent

Malachite and Turquoise Optic Character

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

Similar to their colors, Malachite and Turquoise 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.