from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. dolomite
from the GNU version of the Collaborative International Dictionary of English
- A common name of dolomite; -- so called because it contains magnesia, the soluble salts of which are bitter. See dolomite.
from The Century Dictionary and Cyclopedia
- n. Rhomb-spar, a mineral crystallizing in rhombohedrons. It is the same as dolomite, or carbonate of calcium and magnesium.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a light colored mineral consisting of calcium magnesium carbonate; a source of magnesium; used as a ceramic and as fertilizer
So called because it contains magnesia, which has bitter soluble salts. (Wiktionary)