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Most types of this rock are made from the shells or skeletons of ancient ocean dwellers, such as shellfish or corals.

  1. Limestone
  2. Gneiss
  3. Hornfels
  4. Flint
Most limestone types are made up of the minerals aragonite, calcite, and dolomite.
Most types of this rock are made from the shells or skeletons of ancient ocean dwellers, such as shellfish or corals.
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Most types of this rock are made from the shells or skeletons of ancient ocean dwellers, such as shellfish or corals.
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