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Mining WikipediaMining is the extraction of valuable minerals or other geological materials from the earth usually from an orebody, lode, vein, seam, reef or placer deposits.State of Oregon: Wa

MININGMINING . This page primarily focuses on metallurgical mining, though many of the terms, processes, and concepts are the same within the non-metallurgical extraction ...Geology, Prospectin

Manganese WikipediaManganese is a silvery-gray metal that resembles iron. It is hard and very brittle, difficult to fuse, but easy to oxidize. Manganese metal and its common ions are ...Mangane