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limestone noun

  /ˈlaɪmˌstoʊn/ , /ˈlaɪmˌstəʊn/
  • An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO3); it occurs in a variety of forms, both crystalline and amorphous.
 Kalkstein, Kalk, Calciumcarbonat
limestone pavement
Karre, Schratte
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