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![]() Date: 2007-09-30 02:46:24Crystallography Psilomelane Romanèchite Pyrolusite Hausmannite Manganese oxide Manganese Braunite Cryptomelane Chemistry Oxide minerals Matter | Source URL: www.handbookofmineralogy.comDownload Document from Source WebsiteFile Size: 71,61 KBShare Document on Facebook |