ˈdōləˌmīt, ˈdäl-, usu -īd.+V noun
( -s )
Etymology: French, from Déodat de Dolomieu died 1801 French geologist & French -ite
1. : a mineral CaMg(CO 3 ) 2 consisting of a calcium magnesium carbonate found in rhombohedral crystals and in extensive beds as a compact limestone that is often crystalline granular and either white or clouded — called also bitter spar
2. : a limestone or marble rich in magnesium carbonate