Leach-precipitation-flotation tests of a California copper-gold ore /
by A.L. Engel and H.J. Heinen.

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Main Author: Engel, A. L. (Abraham L.)
Related Names: Heinen, H. J. (Harold J.)
Language(s): English
Published: [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1957.
Subjects: Mine examination > Mine examination / California.
Copper ores > Copper ores / California > Copper ores / California / Testing.
Gold ores > Gold ores / California > Gold ores / California / Testing.
Physical Description: 9 p. ; 27 cm.
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