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A 2013 report said that Mineral Park has an estimated reserves of 389 million t (383 million long tons; 429 million short tons) of ore grading 0.14% copper and 31 million oz (1.9 million lb; 880 t) of silver. [1] Large scale copper mining began in the old Mineral Park district in 1963 when Duval Corporation began the open pit operation.
The mine has one of the largest copper reserves in the United States and in the world. In 2018, the deposit had estimated proven and probable reserves of 3,369 million tonnes of ore grading 0.23% copper and 0.02% molybdenum , along with an additional resource of 1,378 million tonnes of mineralized material at 0.17% copper and 0.02% molybdenum.
It is the largest undeveloped gold deposit in Canada and one of the world's biggest copper-gold porphyry deposits. [5] [6] Though 2P reserves are significant (39 million ounces of gold, 214 million ounces of silver, 9.9 billion pounds of copper and 257 million pounds of molybdenum) they only represent about 65% of the mine's total resource of ...
Production from 1908 to 1978 was more than 4 billion pounds (1.5 million tonnes) of copper and 2,700,000 troy ounces (84 t) of gold, and 2018 annual production of 106 million pounds (48,000 tonnes) of copper and 37,100 troy ounces (1.15 t) of gold. Published ore reserves at Robinson as of end of 2017 were 565,400,000 pounds (256,500 t) of copper.
Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona: KGHM Polska Miedź: Porphyry copper open pit ...
The Prominent Hill Mine is a major copper, silver, and gold mine in north west South Australia, 130 km south-east of Coober Pedy, which was developed by Oxiana Limited, later to become OZ Minerals, and now owned by BHP. The deposit is an iron oxide copper gold style mineralisation.
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The Martin Mine (Gold, copper, lead), produced about 28,000 ounces of gold from two veins between 1911 and 1920, at an average grade of 1 ounce per ton. The Gold Cord Mine (Gold, copper, lead, zinc, tungsten), produced about 16,000 ounces of gold, mainly between 1931 and 1938, from veins with grades ranging for 0.1 to 9 ounces per ton.