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Vaterite is a mineral composed of calcium carbonate (CaCO3). It is a polymorph of calcite and aragonite, meaning it shares the same chemical formula but has a different crystal structure. Vaterite is considered a relatively unstable form of calcium carbonate and is extremely rare in nature. It is typically found to be metastable under most natural conditions and tends to transform into calcite or aragonite.12

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4 Britannica Sources
  1. calcite
  2. vaterite
  3. aragonite
  4. vanadinite

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