Marble, sand, gravel
The mineral resources represent the basis of economic development and independence of any state. In a sustainable economic environment ensuring normal operation of all the branches of the state industry, the use of non-metallic construction materials, as a rule, is in a steady progress. The most important non-metallic materials for construction include: crushed stone, sand, gravel etc. The mining of these resources exceeds half as much the mining of all ores and energy minerals.