do·lo·mite /ˈdoləˌmaɪt, ˈdɑ-/
白雲石
dol·o·mite n. Geol. & Min. A mineral consisting of the carbonate of lime and magnesia in varying proportions. It occurs in distinct crystals, and in extensive beds as a compact limestone, often crystalline granular, either white or clouded. It includes much of the common white marble. Also called bitter spar.
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dolomite
n 1: a kind of sedimentary rock resembling limestone but
consisting almost entirely of the mineral dolomite
2: a light colored mineral consisting of calcium magnesium
carbonate; a source of magnesium; used as a ceramic and as
fertilizer