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  1. present participle of crop


cropping ‎(plural croppings)

  1. (mining) An outcrop that is mined for the ore it contains.
    • 1905, Waldemar Lindgren, The Copper Deposits of the Clifton-Morenci District, Arizona (page 207)
      Their croppings are either entirely barren or contain only a moderate amount of copper, but much richer ore is ordinarily found just above the chalcocite zone.
    • 1912, John Mason Boutwell, ‎Lester Hood Woolsey, Geology and ore deposits of the Park City district, Utah (page 121)
      The cropping of the Quincy ore-bearing bed, the equivalent of the Daly West bed, is stated to have been found at the east end of the present mine and just below the present wagon road.