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malachite gem a t - Newest pictures
gemstones.peperonity.net

☹The Gemstone Malachite☹

Malachite is a deep green opaque gemstone with parallel bands and concentricrings, giving it a unique appearance. Its significance dates back to the ancient Egyptian and Greek civilizations, and its use has been important throughout the centuries. The famous Russian Malachite deposits were historically worked for use as a gemstone and carving stone, with Malachite being especially used in the house of the Russian Czars.
Chemical FormulaCu2CO3(OH)2
ColorGreen, Banded
Hardness3.5 - 4
Crystal System Monoclinic
Refractive Index1.65 - 1.91
SG3.9 - 4.0
Transparency Opaque
Double Refraction-.025
LusterSilky
Cleavage1,1 - basal. Not usually discernible because crystals are tiny.
Mineral Class Malachite


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