Dolomite is an A carbonate of calcium and magnesium Dolomite uses and applications include: Fillerextender in plastics, sealants, and coatings; raw material for sulfite pulp process in papermaking; water treatment chemical; production of calcined dolomite; refractory for furnaces; manufacturing of magnesium compds. and magnesium metals; as building material; in fertilizers; removal of sulfur dioxide from stack gases; mineral wool