Dolomite, with the chemical formula CaMg(CO 3) 2 or CaO·MgO·2CO 2, as the main mineral component of dolostone, is a calcium and magnesium carbonate with an island structure. In the mineral crystal chemical classification, dolomite belongs to the oxysalt category, the carbonate class, and the calcite group. In the structural-functional classification of mineral raw materials in mineral material science, dolostone with dolomite as the main mineral component is classified as a three-dimensional structural rock under the non-functional rock (chemical rocks) subcategory.