chalcocite

1.Major copper minerals are chalcocite and covellite which tightly associate with fine pyrite.

由于原品位低，铜的回率对该的开发利用意义重大。

2.Ore minerals of Luchang-Datongchang Ag-Cu ores include chalcocite, digenite, bornite,stromeyerite and eucairite which are associated with calcite as a cement.

会理鹿厂-大钢厂银铜的石主要由铜、铜、斑铜、硫铜银、硒铜银及硫硒铜银组成，且与胶结方解石密切共生；