Found 2 items, similar to chalcanthite.
English → English (WordNet) Definition: chalcanthite chalcanthite n : hydrated blue crystalline form of copper sulfate [syn: blue vitriol , blue copperas, blue stone]
English → English (gcide) Definition: Chalcanthite Chalcanthite \Chal*can"thite\, n. [L. chalcanthum a solution of blue vitriol, Gr. ?.] (Min.) Native blue vitriol. See Blue vitriol, under Blue. [1913 Webster]