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  2. Marquette Iron Range - Wikipedia

    en.wikipedia.org/wiki/Marquette_Iron_Range

    The Marquette Iron Range is a deposit of iron ore located in Marquette County, Michigan in the United States. The towns of Ishpeming and Negaunee developed as a result of mining this deposit. A smaller counterpart of Minnesota's Mesabi Range , this is one of two iron ranges in the Lake Superior basin that are in active production as of 2018.

  3. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however.

  4. List of mines in Michigan - Wikipedia

    en.wikipedia.org/wiki/List_of_mines_in_Michigan

    Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper: Alabastine Mine: Kent: 1907– gypsum: Arcadian mine: Houghton: 1898–1908: copper

  5. Michigan Limestone and Chemical Company - Wikipedia

    en.wikipedia.org/wiki/Michigan_Limestone_and...

    The Michigan Limestone and Chemical Company operated the world's largest limestone quarry (Michigan Limestone; a/k/a the "Calcite Quarry"; "Calcite Plant and Mill"; and "Carmeuse Lime and Stone"), which is located near Rogers City in Presque Isle County, Michigan. It was formed and organized in 1910; however, production did not begin until 1912.

  6. Fordite - Wikipedia

    en.wikipedia.org/wiki/Fordite

    Fordite, also known as Detroit agate, Motor City agate, [1] paint rock, or paint slag, [2] is a lapidarist term for polished pieces of finely layered paint masses from automobile factories. The masses consist of automotive paint which has hardened sufficiently to be cut and polished.

  7. Copper mining in Michigan - Wikipedia

    en.wikipedia.org/wiki/Copper_mining_in_Michigan

    Ores will be processed at the Humboldt Mill in Michigamme Township. The concentrate is loaded into covered train cars and shipped to smelters in either Canada or Europe. Eagle Mine was the first operation to be permitted under Michigan's Non-Ferrous Metallic Mining Law, better known as Part 632.

  8. National Register of Historic Places listings in Iron County ...

    en.wikipedia.org/wiki/National_Register_of...

    Camp Gibbs was built by the Civilian Conservation Corps in the latter half of 1935 [8] on land purchased by the US from the Michigan Mineral Land Company. The camp was used from 1935 to 1941 as a Michigan Social Welfare Community Organization site to house workers employed in the forest. In 1967, the Iron County Sportsman Club purchased the camp.

  9. Michigan Geological Survey - Wikipedia

    en.wikipedia.org/wiki/Michigan_Geological_Survey

    The Michigan Geological Survey is a scientific agency of the U.S. state of Michigan. The survey is headed by the State Geologist of Michigan . The survey has been composed of three individual surveys: the first from 1837 through 1845, the second from 1859 through 1862, and the third from 1869 to present.

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