USGS Mineral Resources Program Copper—A Metal for the Ages By Jeff Doebrich. ABSTRACT. Copper was one of the first metals ever extracted and used by humans, ...

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A probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in Mexico was done as part of a global mineral ... metal prospects ...

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1998 Assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States. Estimates of the tonnages and amounts of contained metal in ...

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Uses of Copper. Native copper was probably one of the early metals worked by ancient people. Nuggets of the metal could be found in streams in a few areas, and its ...

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Copper (Cu) is an extremely useful industrial metal that is ductile (capable of being drawn into wire), malleable (capable of being hammered and molded) an

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U.S. Department of the Interior U.S. Geological Survey. Fact Sheet 2009–3031 May 2009. 29. Cu. 63.55. copper [Ar]4s13d10. USGS Mineral Resources Program. Copper—A ...

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Back to Rocks and Minerals Articles Peter Russell and Kelly Snyder Copper, a soft red-coloured metal, was one of the first metals to be used in the ancient world. It ...

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