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    Arthur Lakes LibraryColorado School of Mines

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    Chalcopyrite with pyrite, dolomite, tetrahedrite: Colorado, Eagle County, Gilman, Eagle Mine 20-28 Level

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    Thumbnail
    Name:
    FRM1142.jpg
    Size:
    158.4Kb
    Format:
    JPEG image
    Description:
    Chalcopyrite with pyrite, dolomite, ...
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    Date
    2003
    Keywords
    Zinc mines and mining
    Mineral and rock specimens
    
    Metadata
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    URI
    http://hdl.handle.net/11124/7045
    Abstract
    The mineral specimen comes from the Eagle Mine, located near Gilman in the Gilman mining district, Eagle County, Colorado. Rich silver-lead carbonate ores were discovered in the Gilman area around 1879. By the early 1880s a number of the area's mines were producing silver and gold. District production of these metals declined by the 1890s and lead and zinc became the district's primary products by the early 1900s. In 1912 the New Jersey Zinc Company consolidated some of the mines on Battle Mountain into the Eagle Mine, which became Colorado's major zinc producer. The Mine also became known for its attractive mineral specimens. The Eagle was operated by New Jersey Zinc until 1983 when it was purchased by the Battle Mountain Corporation. The Mine was closed in 1984 and subsequently flooded. Because of mine seepage, groundwater contamination and pollution from tailings the area of the Eagle Mine and the town of Gilman was declared a Superfund site in 1986.
    Rights
    Digital image copyright owned by Front Range Minerals, Golden, CO.
    Collections
    Mining History - Images

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