Dolomit#
Dolomite, a mineral composed of calcium and magnesium carbonate as well as a rock containing the mineral as principal constituent. The mineral is used for the manufacture of fire-proof products, building materials, high-quality chippings, crushed stone, etc. In 1998 85 companies with 637 workers mined dolomite; output of 8,971,532 t of untreated dolomite.