blue vitriol vs chalcanthite

blue vitriol and chalcanthite both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue vitriol	Yes	No	No	No
chalcanthite	Yes	No	No	No

As nouns, blue vitriol and chalcanthite are synonyms defined as:

blue vitriol and chalcanthite: hydrated blue crystalline form of copper sulfate

Other synonyms of blue vitriol include blue copperas, blue stone.

blue vitriol (noun)	chalcanthite (noun)
hydrated blue crystalline form of copper sulfate	hydrated blue crystalline form of copper sulfate