bitter spar Meaning, Definition & Usage

  1. noun a light colored mineral consisting of calcium magnesium carbonate; a source of magnesium; used as a ceramic and as fertilizer
    dolomite.

WordNet


Bit"ter spar"
Definitions
  1. A common name of dolomite; -- so called because it contains magnesia, the soluble salts of which are bitter. See Dolomite.

Webster 1913