Dolomitsten

Dolomitsten, also known as dolomite rock, is a sedimentary carbonate rock composed primarily of the mineral dolomite. The mineral dolomite has the chemical formula CaMg(CO3)2, meaning it is a calcium magnesium carbonate. This distinguishes it from limestone, which is primarily calcium carbonate (CaCO3). Dolomitsten often forms through a process called dolomitization, where magnesium-rich waters interact with pre-existing limestone or its precursor, aragonite. This process can occur during or after the deposition of the original carbonate sediments.

Dolomitsten is typically light in color, ranging from white to gray or even pinkish, although impurities can lead to darker shades. It is a relatively hard and durable rock. Its geological occurrence is widespread, found in many sedimentary basins around the world, often interbedded with limestone and shale. Significant deposits are found in Europe, North America, and Australia.

The uses of dolomitsten are varied. It is extensively quarried as a building material, valued for its appearance and durability in construction. It is also a key source for the production of magnesium metal and magnesium compounds. Furthermore, dolomitsten is used as an aggregate in road construction and as a flux in the steel industry. In agriculture, it is employed as a soil conditioner to provide magnesium and calcium and to neutralize soil acidity. The physical and chemical properties of dolomitsten make it a versatile and economically important natural resource.