Meaning of BLUE STONE

Pronunciation:			bloo stown
WordNet Dictionary
	Definition:		[n]  hydrated blue crystalline form of copper sulfate
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	Synonyms:		blue copperas, blue vitriol, chalcanthite
	See Also:		copper sulfate, copper sulphate, cupric sulfate, cupric sulphate
Products Dictionary
	Definition:		Bluestone Bluestone more details ...