dolomite

/ˌdɑləˈmaɪt/

Other forms: dolomites

Definitions of dolomite

1. noun

   a kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
   type of:

   rock, stone

   material consisting of the aggregate of minerals like those making up the Earth's crust
2. noun

   a light colored mineral consisting of calcium magnesium carbonate; a source of magnesium; used as a ceramic and as fertilizer
   synonyms: bitter spar

   type of:

   mineral

   solid homogeneous inorganic substances occurring in nature having a definite chemical composition