Limestone

Limestone
Wikimedia Commons

Limestone

Sedimentary

Hardness: 3

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Banded Iron FormationBrecciaChertConglomerate (Puddingstone)SandstoneShale

Limestone is a sedimentary rock composed mainly of calcite from shells, skeletons, and chemical precipitation; it effervesces in dilute hydrochloric acid.

Parent: Sedimentary Rocks

Related: Banded Iron Formation, Breccia, Chert, Conglomerate (Puddingstone)

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