TABLE 3 | ||||||||
MINE PRODUCTION OF COPPER-BEARING ORES AND RECOVERABLE COPPER CONTENT OF ORES | ||||||||
PRODUCED IN THE UNITED STATES, BY SOURCE AND TREATMENT PROCESS1 | ||||||||
(Metric tons) | ||||||||
2013 | 2014 | |||||||
Gross | -Recoverable | Gross | -Recoverable | |||||
Source and treatment process | weight | copper | weight | copper | ||||
Mined copper ore: | ||||||||
Concentrated | 172,000,000 | 731,000 | r | 175,000,000 | 819,000 | |||
Leached | NA | 475,000 | NA | 514,000 | ||||
Total | NA | 1,210,000 | r | NA | 1,330,000 | |||
Copper precipitates shipped, leached from | ||||||||
tailings, dumps, and in-place material | NA | W | NA | W | ||||
Other copper-bearing ores2 | 5,480,000 | 42,400 | r | 5,620,000 | 24,500 | |||
Grand total | XX | 1,250,000 | XX | 1,360,000 | ||||
rRevised. NA Not available. W Withheld to avoid disclosing company proprietary data; included with -Other copper-bearing ores.--- | ||||||||
XX Not applicable. | ||||||||
1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||
2Includes gold ore, lead ore, and silver ore. |
Source: United States Geological Survey Mineral Resources Program
See also: Mineral commodity prices