Search results
Results From The WOW.Com Content Network
Climax Molybdenum Company (Freeport-McMoRan) Lake: Henderson [3] [4] Climax Molybdenum Company (Freeport-McMoRan) Clear Creek: Idaho: Thompson Creek [3] Thompson Creek Metals Co. Inc. Custer: Montana: Continental Pit [3] Montana Resources LLP: Silver Bow: Nevada: Ashdown mine [3] Win-Eldrich Mines Ltd. Humboldt: Robinson [3] Quadra FNX Mining ...
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 second class, which produces molybdenum as a byproduct of copper mining, includes copper porphyry deposits. In 2014, byproduct molybdenum was produced at ten porphyry copper mines, in Arizona, Montana, Nevada, and New Mexico. Byproduct molybdenum from copper mines accounted for 47% of US molybdenum production in 2013.
The mine is located in southern Pima County, southwest of Tucson and west of Green Valley-Sahuarita. Originally developed as an underground mine in 1907, the Sierrita open pit has been in operation since 1959 and is a copper and molybdenum mining complex, operating on a porphyry copper deposit with oxide, secondary sulfide, and primary sulfide ...
It is located in Yavapai County, Arizona, just west of the company town of Bagdad. It is currently owned by Freeport-McMoRan. Copper is produced from chalcopyrite and molybdenum from molybdenite. Copper oxides include chrysocolla, malachite and azurite. The mine's concentrator has a capacity of 75,000 metric tons per day using stockpile ...
Freeport-McMoRan Inc., often called Freeport, is an American mining company based in the Freeport-McMoRan Center, in Phoenix, Arizona.The company is the world's largest producer of molybdenum, a major copper producer and operates the world's largest gold mine, the Grasberg mine in Papua, Indonesia.
Resolution Copper has proposed to give the federal government 5,376 acres (21.76 km 2) of environmentally sensitive land in Arizona in exchange for the 2,422-acre (9.80 km 2) oak flat federal parcel, [12] which includes the Oak Flat Campground (protected since 1955) and several outdoor climbing sites including the Mine, Atlantis and the Pond.
Rank Mine County and State Owner Source of copper Annual production (thousand tonnes) 1 Morenci: Greenlee County, Arizona: Freeport-McMoRan (72%), Sumitomo Group (28%): Open pit, copper-molybdenum ore, producing copper cathode, copper and molybdenum concentrates