Dolomite
Dolomite. Sedimentary deposit and mineral, usually of marine origin, a form of limestone that contains calcium and magnesium carbonate. In Ukraine dolomite is found mostly among the Paleozoic deposits in the Donets Basin, the Tertiary deposits in the Black Sea Lowland, the Silurian deposits in Podilia, and the Precambrian deposits in the Kryvyi Rih region and the Boh River region. Dolomite is an important supplementary raw material in metallurgy and, therefore, it is mined primarily in the Donets Basin. The principal dolomite deposits are found near Mykytivka (See Mykytivka mercury deposit), Yama, and Novotroitsk in the Donbas.
[This article originally appeared in the Encyclopedia of Ukraine, vol. 1 (1984).]