DescriptionHematite-rich iron ore (Precambrian; Pioneer Mine, Ely, Minnesota, USA) 3.jpg English: Iron ore from the Precambrian of Minnesota, USA. (~8...
DescriptionHematite-rich iron ore (Precambrian; Pioneer Mine, Ely, Minnesota, USA) 1.jpg English: Iron ore from the Precambrian of Minnesota, USA. (~7...
DescriptionHematite-rich iron ore (Precambrian; Pioneer Mine, Ely, Minnesota, USA) 4.jpg English: Iron ore from the Precambrian of Minnesota, USA. (crack...
DescriptionHematite-rich iron ore (Precambrian; Pioneer Mine, Ely, Minnesota, USA) 2.jpg English: Iron ore from the Precambrian of Minnesota, USA. (~8...
Production Iron Horse Mine Location: Commodity: Ore Materials: Geology: Production: 2. Sec. 9, T6S, R7E, New Mexico Meridian Fe Magnetite, hematite, limonite...
Magnetic iron ores of East Tennessee and western North Carolina ( ) Author Bayley, William Shirley, 1861-1943 Title Magnetic iron ores of East Tennessee...
which cut Precambrian granite. a maximum length of 5,000 feet with the average width being about 30 feet. Ore containing quartz and hematite gangue was...
cumulative supplements Includes bibliographical references (p. 45-49) Subjects: Ore deposits; Mines and mineral resources Language English Publication date 1986...
structural features of Ontario and surrounding areas to include: the Precambrian Shield and its divisions into the Grenville and Superior Provinces (this...
DescriptionHematite (iron ore) (weathered zone in the Biwabik Iron-Formation, Whiteside Mine, Buhl, Minnesota.jpg Earthy hematite (iron ore) from the Precambrian...
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