辉铜矿
Chalcocite \Chal"co*cite\, n. [Gr. chalko`s brass.] (Min.) Native copper sulphide, called also {copper glance}, and {vitreous copper}; a mineral of a black color and metallic luster. [Formerly written {chalcosine}.]
chalcocite n : a heavy gray mineral that is an ore of copper [syn: {copper glance}]