Dolomite CaMg (CO3)2

Dolomite: A Versatile Mineral and Rock Dolomite is a fascinating material that exists in two forms: a mineral and a rock. As a mineral, dolomite is an anhydrous carbonate composed of calcium and magnesium carbonate, ideally in a 1:1 ratio (CaMg(CO₃)₂). This mineral is a key component of the sedimentary rock also called dolomite, which is primarily composed of dolomite crystals. Geologists sometimes use the term “dolostone” to distinguish the rock from the individual mineral itself.