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dolomite in British English
(ˈdɒləˌmaɪt)
noun
1.
a white mineral often tinted by impurities, found in sedimentary rocks and veins. It is used in the manufacture of cement and as a building stone (marble). Composition: calcium magnesium carbonate. Formula: CaMg(CO3)2. Crystal structure: hexagonal (rhombohedral)
2.
a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory
Derived forms
dolomitic (ˌdɒləˈmɪtɪk) adjective
Word origin
C18: named after Déodat de Dolomieu (1750–1801), French mineralogistdolomite in American English
(ˈdoʊləˌmaɪt; ˈdɑləmaɪt)
noun
1.
a light-colored, semihard, rhombohedral mineral, calcium magnesium carbonate, CaMg(CO3)2, with a glassy luster and perfect cleavage, used in making cement, chemicals, etc.
2.
a light-colored sedimentary rock consisting mainly of dolomite and calcite, used as a building stone
Word origin
after Déodat de Dolomieu (1750-1801), Fr geologistImage ofdolomite
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