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Limestone commonly predominantly contains Calcite and Aragonite which are the two crystal forms of Calcium Carbonate (CaCO3). It commonly also contains detrital clasts (broken pieces of other material) such as flint or chert which are silica.

Some limestones also contain the mineral dolomite which is Calcium Magnesium Carbonate (CaMg(CO3))2.

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14y ago

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