Malachite
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Mineral NameMalachite
Chemical FormulaCu2(CO3)(OH)2
Mohs Hardness3.5
Crystal Systemmonoclinic
Lustersilky
Streak Colorlight green
Cleavageperfect on {201}, good on {001} (rarely observed)
Fractureconchoidal
Specific Gravity3.6
Colorsgreen, dark green, light green
Transparencytranslucent
Type LocalityDemocratic Republic of Congo
Mineral GroupCarbonates
Usesjewelry, ornamental stone, pigment, minor copper ore
Associated Mineralsazurite, cuprite, native copper, goethite, calcite
Raritycommon
Description
Malachite is a striking green mineral, often forming botryoidal or stalactitic masses with characteristic concentric banding, giving it a unique visual appeal.
Geological Context
It is a secondary mineral found in the oxidized zones of copper ore deposits, forming through the alteration of primary copper minerals by carbonated waters.
