Malachite
Malachite is a carbonate mineral mainly composed of Cu2 (OH) 2CO3, with a color ranging from dark green to bright green, silky or glassy luster, semi transparent to opaque, and a Mohs hardness of 3.5-4.5. Malachite is produced on the surface of copper mines, near the surface oxidation zone, and coexists with chalcopyrite, azurite, chalcopyrite, and siliceous malachite. It is an important mineral for prospecting primary copper mines and also a type of jade material.
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