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出典:Wikipedia
出典:『Wikipedia』 (2011/07/29 11:31 UTC 版)
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite at 380-470°C, and vaterite is even less stable.
Calcite