chalcocite, copper glance - a heavy grey mineral that is an ore of copper. chalcopyrite, copper pyrites - a yellow copper ore (CuFeS2) made up of copper and iron sulfide. cuprite - a mineral consisting of cuprous oxide that is a source of copper. malachite - a green or blue mineral used as an ore of copper and for making ornamental objects ...
The province of the ore-dresser is to separate the " values " from the waste - for example, quartz, felspar, calcite - by mechanical means, obtaining thereby " concentrates " and " tailings." The province of the metallurgist is to extract the pure metal from the concentrates by chemical means, with or without the aid of heat.
Ore of copper is a copper-bearing mineral from which pure copper can be extracted Sulphide ores, in which copper is chemically bonded with sulphur, are the source of roughly 80 percent of all of the world's extracted copper There are about 15 types of different copper ores officially mined around .
POLK COUNTY: Copper occurs rarely as thin films and masses up to several kilograms in the amygdaloidal basalts at Sec. 5 and 6 T.33N R.18W at the Dresser Trap Rock Quarry (Cordon, 1989b). — Shows of native copper associated with cuprite, chalcocite and malachite are reported in the Fredrick-Clam Falls area (Hansell, 1928 a and b).