Definitions

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

Etymologies

From its old Latin name chalcanthum "flowers of copper". (Wiktionary)

Examples

  • 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.

    The Economic Aspect of Geology

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