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Date: 2007-09-30 00:09:50Akhtenskite Cryptomelane Todorokite Manganese oxide Psilomelane Pyrolusite Nsutite Manganese Ore Oxide minerals Chemistry Matter | Add to Reading ListSource URL: www.handbookofmineralogy.orgDownload Document from Source WebsiteFile Size: 68,42 KBShare Document on Facebook |