chalcocite

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English[edit]

Chalcocite
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Noun[edit]

chalcocite (countable and uncountable, plural chalcocites)

  1. (mineralogy) Cuprous sulphide, Cu2S, an important ore of copper.
    • 1905, Waldemar Lindgren, The Copper Deposits of the Clifton-Morenci District, Arizona (page 207)
      Their croppings are either entirely barren or contain only a moderate amount of copper, but much richer ore is ordinarily found just above the chalcocite zone.