Capstone Mining Corp. has agreed to buy BHP Billiton's Pinto Valley Mine in Gila County and the related San Manuel Arizona Railroad for $650 million in cash.
SINGAPORE - Copper supply shortages will extend into the first half of next year as an accelerating Chinese economy more than doubles the pace of growth in global consumption even as mines extract a record amount of metal.
From left, flotation concentrate (shining chalcopyrite), copper concentrate in a very fine, wetted, sand form; a solution of all the minerals in the copper ore rock, plus chemicals and water used to separate the calcopyrite; a compound containing copper, along with iron and sulfur, the basic…
A worker moves copper cathodes, a process Rosemont has decided against, at a mine near Benson.
Higher costs and profits than previously forecast are on tap for the proposed Rosemont Mine, says a new feasibility study.
This composite of six images, facing east, shows the valley in the part of the area proposed for Rosemont Copper's open-pit mine in the Coronado National Forest in the Santa Rita Mountains south of Tucson.