dolomite formation

Dolomite formation occurs when magnesium-rich waters react with limestone (calcium carbonate) deposits, often in marine environments. Over time, magnesium replaces some calcium in the limestone, creating a mineral called dolomite. This process can happen directly through chemical reactions or indirectly when magnesium-rich fluids alter existing limestone. The resulting rock, dolomite, is a carbonate mineral that forms in sedimentary layers, commonly in shallow seas, and plays a significant role in the carbon cycle and limestone geology.