Dolomite mineral is one of the commonly used minerals in sedimentary rocks with a chemical structure consisting of calcium carbonate and magnesium CaMg (CO3) 2, which crystallizes in the rhomboditic system and is completely molded in three directions. Most dolostones are found gray to beige and white to gray but some are also found in other colors like white, yellow, green and black. This mineral has a specific gravity of 6.2 grams per cubic centimeter, with a hardness of 4.5 / 3 and glass or pearl lining .The dominant elements of dolomite are mainly magnesium oxide (MgO) and lime (CaO), but other elements such as iron oxides, sodium and potassium oxides can also be found in their building. This mineral contains 4/30% (CaO), 21/92% (MgO) and 47/7% (CO2).Dolomite is found in the form of massive layers of several decades thick. Dolomite forms about 15% of the earth's crust and is found to be high in all parts of the world and is known as a common component of sedimentary sequences. Dolomite-containing stones are known as dolomite or limestone dolomite.
1- In building: In building as a building stone in the following or in some cases crystallized for decorative stones and facades. Of course, this is the minimum use of this mineral because its other uses are more important and have more added value. In Iran, Kermanshah and Kurdistan dolomite mines are more used in building because of lack of technology or industry in the region. 2- In tile and ceramic and glass industry: In the glass industry, dolomite is used as a melting aid. The dolomite used in this industry should be at least the amount of colored oxides such as iron, titanium and manganese, and so on. About 10 to 15 percent of dolomite usually adds to tile construction. In Iran, dolomite is the most used in glass and tiling industries.Dolomite as a source of CaO and MgO in the melting industry (iron and non-ferrous), agriculture (as fertilizer and soil regulator, preparation of manganese from sea water, refractory industry (bricks, cementing, etc.), glass-making, Building materials (tile, concrete, etc.), fillers in rubber, lacquering, painting, ceramic, agriculture as fertilizer and soil regulator, and the use of dolomite in the preparation of manganese from sea water are used.