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2012 Minerals Commodity Summaries by nationalmining is a document available to read on EtoBox.

U.S. Department of the Interior MINERAL COMMODITY SUMMARIES 2012 KEN SALAZAR, Secretary U.S. Geological Survey marcia k. Mcnutt, Director manuscript approved for publication January 24, 2012. For more information on the USGS--the Federal source for science about the earth, its natural and living resources, natural hazards, and the environment, visit or call 1-888-ASK-USGS.

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nationalmining

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