Malachite is a copper carbonate hydroxide mineral. This opaque, green banded mineral crystallises in the monoclinic crystal system and most often forms botryoidal, fibrous, or stalagmitic masses in fractures and spaces, deep underground where the water table and hydrothermal fluids provide the means for chemical precipitation.

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Malachite is a copper carbonate hydroxide mineral. This opaque, green banded mineral crystallises in the monoclinic crystal system and most often forms botryoidal, fibrous, or stalagmitic masses in fractures and spaces, deep underground where the water table and hydrothermal fluids provide the means for chemical precipitation.

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Photo credit: © World History Archive / Alamy / Afripics
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Keywords: archival, archive, botryoidal, carbonate, copper, crystal, crystallises, fibrous, green, historical, history, hydroxide, malachite, mineral, monoclinic, opaque, precious-stones, stalagmitic