Limestone is composed almost entirely of calcite, which has the chemical formula CaCO₃. As a result, limestone is classified as____________ . A) a rock B) a mineral C) both a mineral and a rock D) neither a mineral nor a rock because it is organic

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Limestone is classified as a rock because it is composed of the mineral calcite (CaCO3) and can contain various other minerals and organic materials. Rocks are naturally occurring solid aggregates of minerals, mineraloids, or organic materials.

Limestone Is Composed Almost Entirely of Calcite, Which Has the Chemical