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Which two minerals have compositions that are most similar to calcite

User Janner
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Magnesite and Dolomite

Calcite is a carbonate mineral which readily occurs in the form of calcium carbonate, CaCO3

Magnesite which occurs in the form of magnesium carbonate (MgCO3) and dolomite which is essentially a mixture of calcium-magnesium carbonate (CaMg(CO3)2) are the two minerals that have compositions similar to calcite.

User Samuel ROZE
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