from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mineral form of copper sulfate, CuSO4.
from the GNU version of the Collaborative International Dictionary of English
- n. Native blue vitriol. See Blue vitriol, under blue.
from The Century Dictionary and Cyclopedia
- n. Native copper sulphate or blue vitriol. Also called cyanosite.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. hydrated blue crystalline form of copper sulfate
The oxide group of minerals -- including the copper carbonates, azurite and malachite; the silicate, chrysocolla; the oxide, cuprite; the sulphates, chalcanthite and brochantite; and some native copper associated with these minerals -- probably supplies another 5 per cent.