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Date: 2007-12-17 14:52:12Architecture Matter Economic geology Building materials Natural materials Crushed stone Industrial mineral Construction aggregate Leonardite Pavements Stone Construction | 2005 Minerals Yearbook NORTH DAKOTA U.S. Department of the Interior U.S. Geological SurveyAdd to Reading ListSource URL: minerals.usgs.govDownload Document from Source WebsiteFile Size: 70,01 KBShare Document on Facebook |