Extraction of copper and nickel from the Duluth Gabbro complex by selective high-temperature sulfatization

Author:	Joyce, F. E.,
Year:	1971
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7475
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7475
Subjects:	Nickel
	Copper
	Geology, Structural--Minnesota
Link:	https://hdl.handle.net/2027/mdp.39015078521815