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A number of byproducts are recovered from American copper mining. In 2013, American copper mining produced 28,500 metric tons of molybdenum, worth about $700–800 million, which was 47% of total US production. [3] In 2014, copper mining produced about 15 metric tons of gold, worth $600 million, which represented 7% of US gold production. [4]
Leading copper-producing mines in the U.S., 2018–2021, in order of output: [1] The mines on this list account for more than 99% of U.S. mine copper production. Rank Mine
Own work using data from the United States Geological Survey Data Series 140: "The sources of data for the copper worksheet are the mineral statistics publications of the U.S. Bureau of Mines and the U.S. Geological Survey--Minerals Yearbook (MYB) and its predecessor, Mineral Resources of the United States (MR), and Metal Prices in the United ...
Production trends in the top five copper-producing countries, 1950-2012. This is a list of countries by mined copper production. Copper ore can be exported to be smelted so that a nation's smelter production of copper can differ greatly from its mined production. See: List of countries by copper smelter production.
Copper mining in the Upper Peninsula boomed, and from 1845 until 1887 (when it was exceeded by Butte, Montana) the Michigan Copper Country was the nation's leading producer of copper. In most years from 1850 through 1881, Michigan produced more than three-quarters of the nation's copper, and in 1869 produced more than 95% of the country's ...
On November 11, KGHM Polska Miedź S.A reported that the Polish metallurgical production of copper was 442.5 kilotonnes, while the mined production was 334.4 kilotonnes in the three quarters of ...
Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as byproducts. [2] Byproduct molybdenum from copper mining makes Arizona the nation's second-largest producer of that metal. Although copper mineralization was found by the earliest Spanish explorers of Arizona, the territory was ...
The Quincy Mine was known as "Old Reliable," as the Quincy Mine Company paid a dividend to investors every year from 1868 through 1920. [4] The Quincy Mining Company Historic District is a United States National Historic Landmark District ; [ 2 ] [ 3 ] other Quincy Mine properties nearby, including the Quincy Mining Company Stamp Mills , [ 5 ...