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 Date: 2007-09-30 02:43:10Natural resources Pyrolusite Manganite Hausmannite Manganese oxide Braunite Oxide minerals Chemistry Crystallography |
| APPENDIX 2 CHARACTERISTICS OF COMMON ORE MINERALS TABLE A2.! The Common Ore Minerals in Order oflncreasing Mininum ReflectanceDocID: ywDp - View Document |
| MANGANESE DEPOSITS NEAR BROMIDE, OKLAHOMA. By D. F. HEWETT. FIELD WORK. During 1917, when there was a prospective shortage of manganese ore, the attention of the United States Geological Survey was called to manganese deDocID: 9bvE - View Document |
| The Manganese Oxide Minerals: A Preliminary ReportDocID: 4TOm - View Document |
| AN X-RAY STUDY OF PSILOMELANE AND WAD LEWISDocID: 4TwB - View Document |
| Ca6 (Fe3+ , Al, Mn2+)2 (SO4 )2 [B(OH)4 ](OH)12 • 25H2 O SturmaniteDocID: 4rfn - View Document |