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  2. 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.

  3. Jacobsville Sandstone - Wikipedia

    en.wikipedia.org/wiki/Jacobsville_Sandstone

    Jacobsville Sandstone is generally red, due to small quantities of iron oxides, mottled with various pinks, whites and browns. [14] The sandstone exhibits many white streaks and spherical spots, caused by leaching and bleaching, which form sharp boundaries with surrounding colors.

  4. Copper mining in Michigan - Wikipedia

    en.wikipedia.org/wiki/Copper_mining_in_Michigan

    This series of lava "is at least 15,000 feet thick in the Michigan copper district" and consists of "several hundred flood basalt flows." The district rocks are Precambrian in age and belong to the Keweenawan Series. The first six years of mining exploited the fissure deposits, then gave way to the amygdaloidal deposits.

  5. 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.

  6. Gogebic Range - Wikipedia

    en.wikipedia.org/wiki/Gogebic_Range

    Since the two ranges of hills are made up of dissimilar rock types, the rock formation containing the iron ore deposits is located exclusively within the southern (Gogebic) Range. The Gogebic Range experienced a speculative iron boom in the mid-1880s, and had recurring booms and busts from 1884 to 1967 as demand shifted.

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