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Malachite
Malachite

Strontianite
Strontianite



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Malachite
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Strontianite

Malachite and Strontianite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Silky
Vitreous, Greasy

Pleochroism

-
-

Dispersion

0.040.04
0.005 1
👆🏻

Transparency

Opaque
Transparent

Refractive Index

1.655-1.9091.517-1.667
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.254-9999
0 0.296
👆🏻

Clarity

-
Transparent

Malachite and Strontianite Optic Character

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

Similar to their colors, Malachite and Strontianite 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.