a light-colored, semihard, rhombohedral mineral, calcium magnesium carbonate, CaMg(CO), with a glassy luster and perfect cleavage, used in making cement, chemicals, etc.
a light-colored sedimentary rock consisting mainly of dolomite and calcite, used as a building stone
Origin:
after Déodat de Dolomieu (1750-1801), Fr geologist
See dolomite in American Heritage Dictionary 4
noun
A white or light-colored mineral, essentially CaMg(CO3)2, used in fertilizer, as a furnace refractory, and as a construction and ceramic material.
A magnesia-rich sedimentary rock resembling limestone.
Origin:
Origin: French
Origin: , after Déodat de Dolomieu (1750-1801), French geologist