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Malachite, CU2CO3(OH)2, green, translucent mineral containing crystals of hydrated copper carbonate. It is widely distributed, usually occurring near copper deposits, in the United States, the former USSR, Chile, Zaïre, Zimbabwe and Australia. It is used as a source of copper, an ornamental stone, and, when ground, as a pigment.

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21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Lyon, Mary to Manu