• Sediments settle out of water in horizontal layers.
  • Chemical sedimentary rocks are made of minerals that precipitate from saline water.
  • Organic sedimentary Rocks are made from the bodies of organisms.
  • Sandstone is made of sand-sized particles.
  • Silt is smaller than sand but larger than clay.
  • Shale has the smallest grain size.
  • Conglomerate and breccia are.
  • made of individual stones that have been cemented together.
  • In conglomerate, the stones are rounded.
  • In brecca, the.
  • stones are angular.
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