| 单词 | dolomite |
| 释义 | Word Frequency dolomite(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 mineralogist |
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