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Business and Industry
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Iron Mines and Mining
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Step 4 of testing an ore sample: Riffler in the mine lab, Minnesota
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Step 5 of testing and ore sample: Ring stand and crucible, Minnesota
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Step 3 of testing and ore sample: Grinding the sample in the mine lab, Minnesota
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Step 1 of testing and ore sample: Gathering ore sample for the mine lab from the ore train, Minnesota
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Step 2 of testing and ore sample: Crusher in the mine lab, Minnesota
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Oliver Iron Mining Company Men, Hibbing, Minnesota
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Ore Dock Railroad Tracks, Duluth, Minnesota
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Minnesota Iron Company, Tower, Minnesota
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Mahoning Mine, Hibbing, Minnesota
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Locomotive in mine pit, Tower, Minnesota
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Chandler Mine No. 3, Ely, Minnesota
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United States Steel mill, Duluth, Minnesota
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Trout Lake Beneficiation plant, Coleraine, Minnesota
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Spruce Mine, Eveleth, Minnesota
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Shenango Mine, Chisholm, Minnesota
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Oliver Iron Mining Company staff, Hibbing, Minnesota
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Oliver Iron Mining Company electric shovel, Hibbing, Minnesota
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Mountain Iron Mine, Mountain Iron, Minnesota
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Mahoning Mine, Hibbing, Minnesota
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Hull-Rust Mine, Hibbing, Minnesota
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Adams Mine, Eveleth, Minnesota
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Topic
Business and Industry
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Still Image
21
Physical Format
Black-and-white photographs
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Current results range from
1891
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1956
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Subject Headings
Iron Industry and Trade
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21
Iron Mines and Mining
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21
Iron Ores
16
Ore Dressing
1
Contributor
University of Minnesota Duluth, Kathryn A. Martin Library, NEMHC Collections
16
Minnesota Museum of Mining
5
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In Copyright
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No Copyright - United States
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