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Showing: 1 to 10 of 2640 matches for "hard hematite ore"  Page   1   2   3   4   5   6   7   8   9  next TITLE Carbonate Alteration Associated With the Carajßs High-Grade Hematite Deposits, Brazil  SUMMARY ... New evidence from the N4 Mine in the Carajás District shows that magnetitic and dolomitic BIF, and lenses of porous hard hematite ore occur in the lower part ... AUTHOR C A RosiΦre ; M Barley ; L Lobato PUBLISHED 2002 TITLE Bulk Density as a Method to Evaluate Reducibility of Hard Hematite Ore in the Direct Reduction Process  SUMMARY ... Hard Hematite Ore in the Direct Reduction Process CAC Varajão 1 , V Suckal 2 , RA Vilela 3 , RJ de Melo 4 , A Bruand 5 , ER Ramanaidou 6 , ... AUTHOR V Suckal ; R A Vilela ; R J deMelo ; A PUBLISHED 2002 TITLE Origin of the Hard Hematite Deposits of Quadrilßtero Ferrφfero, Minas Gerais, Brazil ù Field, Textural and Fluid Inclusion Studies  SUMMARY ... Field, textural and fluid inclusion studies in cogenetic quartz-hematite have revealed some data on the genetic evolution of hard hematite ore bodies at QF. ... AUTHOR D A B Pasin ; B R Bittencourt ; D Pi PUBLISHED 2005 TITLE Distribution of Hard Hematite Ore at the Quadilßtero Ferrφfero, Minas Gerais, Brazil and its Possible Genetic Significance  SUMMARY Page 1. Distribution of Hard Hematite Ore at the Quadrilátero Ferrífero, ... The origin of the hard hematite ore from QF has been discussed by some geologists. ... PUBLISHED 2002 TITLE Metamorphism of the Itabira Iron Formation and Haematite Generation at the Quadrilßtero Ferrφfero, Minas Gerais, Brazil  SUMMARY Page 1. Distribution of Hard Hematite Ore at the Quadrilátero Ferrífero, ... The origin of the hard hematite ore from QF has been discussed by some geologists. ... AUTHOR M A Fonseca ; D M Aranha ; M Echtern PUBLISHED 2007 TITLE Specific Gravity and its Relationship to Chemical Composition in Iron Ore  SUMMARY ... Low porosity (ore) Hard hematite ore 69.9 0.15 0.1 4.02 5.22 23.0 Hard hematite ore 69.9 0.15 0.15 5.02 5.16 2.7 Hard hematite ore 69.8 0.35 0.1 4.99 5.43 8.1 ... AUTHOR Reid T W PUBLISHED 1976 TITLE Supergene Iron Ore and Disorder  SUMMARY ... averages a specific gravity of 3.6 t/m 3 . Although hematite has a theoretical specific gravity of 5.26 t/m 3 , and 4.0 t/m 3 for hard hematite ore, a recovery ... AUTHOR F R M Pires ; R M Carvalho PUBLISHED 2002 TITLE The Geology and Genesis of High-Grade Hematite Iron Ore Deposits  SUMMARY ... powdery saprolitic hematite ores, usually composed of microplaty hematite, specularite and martite, are invariably associated with bodies of hard hematite ore. ... AUTHOR J Gutzmer ; J Mukhopadhyay PUBLISHED 2002 TITLE Marra Mamba Iron Ore - A Case History in Exploration and Developments of a New Ore Type  SUMMARY ... Company geologists had preViously postulated the existance of martite-hematite ore types in the Marra Mamba Iron Formation and recent The Aus. ... PUBLISHED 1981 TITLE Laboratory Studies on Iron Ore Sintering and Testing  SUMMARY ... Unaltered fragments of the original ore min- erals ... Secondary iron oxides consisting of hematite and magnetite ... A polished section of hard magnetite sinter shows ... AUTHOR Hamilton, F. M. ; Ameen, H. F. PUBLISHED 1950 Showing: 1 to 10 of 2640 matches for "hard hematite ore"  Page   1   2   3   4   5   6   7   8   9  next Search Again