from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A usually white or colorless mineral, essentially Zn4Si2O7(OH)2·H2O, an important ore of zinc. Also called calamine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An orthorhombic-pyramidal mineral containing hydrogen, oxygen, silicon, and zinc.
from The Century Dictionary and Cyclopedia
- n. Calamin, or hydrous silicate of zinc: a name given in allusion to the common hemimorphic character of the crystals.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a white mineral; a common ore of zinc
This unfortunate confusion is somewhat lessened by the use of the terms zinc-spar and hemimorphite (_q. v._) for the carbonate and silicate respectively.