n. 辉铜矿

[化] 辉铜矿

[ noun ]
a heavy grey mineral that is an ore of copper
<noun.substance>

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}.]