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Hematite Versus Magnetite Iron Ore

The separate determinations of iron as magnetite, and total iron, were made so that the difference between the two would show the amount of iron combined as silicates in hornblende and other gangue minerals.No.234, separation test on jackson hill ore, arnold, n.Y.

Wisconsin Geological Natural History Survey

In wisconsin, the most important iron ore minerals are oxides magnetite fe 3 o 4, hematite fe 2 o 3, and goethitelimonite fe 2 o 3 h 2 o.Brief overview of wisconsins iron mining history.Limited amounts of high-grade iron ore were first mined in wisconsin in the 1850s in the black river falls district of jackson county and the.

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