Chalcanthite

n.

1.

(Min.) Native blue vitriol. See Blue vitriol, under Blue.

Noun

1.

chalcanthite - hydrated blue crystalline form of copper sulfate Synonyms: blue copperas, blue stone, blue vitriol

blue copperas, blue stone, blue vitriol, copper sulfate, copper sulphate, cupric sulfate, cupric sulphate