膽礬
Chalcanthite \Chal*can"thite\, n. [L. chalcanthum a solution of blue vitriol, Gr. ?.] (Min.) Native blue vitriol. See {Blue vitriol}, under {Blue}.
chalcanthite n : hydrated blue crystalline form of copper sulfate [syn: {blue vitriol}, {blue copperas}, {blue stone}]