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  2. Sand mining - Wikipedia

    en.wikipedia.org/wiki/Sand_mining

    Frac sand facility in Blair, Wisconsin Frac sand mine in the Town of Oakdale, Wisconsin with a large looped track with 3 rail lines. Silica sand mining business has more than doubled since 2009 because of the need for this particular type of sand, which is used in a process known as hydraulic fracturing. Wisconsin is one of the five states that ...

  3. Category:Mining communities in North Carolina - Wikipedia

    en.wikipedia.org/wiki/Category:Mining...

    Pages in category "Mining communities in North Carolina" ... Midland, North Carolina This page was last edited on 4 June 2016, at 01:13 (UTC). Text ...

  4. Itacolumite - Wikipedia

    en.wikipedia.org/wiki/Itacolumite

    The stone is porous, and often yellow in color. It is also found in Kaliana village (Charkhi Dadri district, Haryana, India), [1] the U.S. state of Georgia, and Stokes and McDowell counties of North Carolina. It is the best and most widely known example of a flexible sandstone, and is a source of diamonds found in the Minas Gerais area of ...

  5. Aggregate industry in the United States - Wikipedia

    en.wikipedia.org/wiki/Aggregate_industry_in_the...

    As of 2023, there were about 3400 companies mining sand and gravel, [1] and 1400 mining crushed rock in the United States, [2] with many companies doing both. Top crushed rock companies as of 2015, in order of descending tonnage. The top ten companies provided 45 percent of the crushed rock produced in the US. [5] Rank Company 1. Martin ...

  6. Spruce Pine Mining District - Wikipedia

    en.wikipedia.org/wiki/Spruce_Pine_Mining_District

    The Spruce Pine Mining District is a swath of the valley of the North Toe River in the Blue Ridge Mountains of northwestern North Carolina. The area is mined for its mica, kaolin, quartz and feldspar. [1] Spruce Pine district is one of the largest suppliers of high-purity quartz, which is used in the manufacture of silicon for integrated ...

  7. Category:Mining in North Carolina - Wikipedia

    en.wikipedia.org/wiki/Category:Mining_in_North...

    Mining museums in North Carolina (1 P) Pages in category "Mining in North Carolina" The following 3 pages are in this category, out of 3 total.

  8. Mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Mining_in_the_United_States

    Carolina Gold Rush, Cabarrus County, North Carolina, US (1799) Georgia Gold Rush, Georgia, US (1828) California Gold Rush, California (1848–1855) Pikes Peak Gold Rush, Pikes Peak, Colorado (1859) Holcomb Valley Gold Rush, California (1860) Black Hills Gold Rush, Black Hills of South Dakota and Wyoming (1874–1878)

  9. Geology of North Carolina - Wikipedia

    en.wikipedia.org/wiki/Geology_of_North_Carolina

    Looking Glass Dome. The geology of North Carolina includes ancient Proterozoic rocks belonging to the Grenville Province in the Blue Ridge.The region experienced igneous activity and the addition of new terranes and orogeny mountain building events throughout the Paleozoic, followed by the rifting of the Atlantic Ocean and the deposition of thick sediments in the Coastal Plain and offshore waters.