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Date: 2013-03-26 10:13:12Oxide minerals Chemical elements Conflict minerals Minerals Mining in Rwanda Coltan Tantalum Wolframite Democratic Republic of the Congo Chemistry Matter Mining in the Democratic Republic of the Congo | Manufacturers Industrial Group LLC PO Box 439 Lexington TNPhoneFaxAdd to Reading ListSource URL: www.migllc.comDownload Document from Source WebsiteFile Size: 392,65 KBShare Document on Facebook |