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Concentration of oxide manganese ores from the vicinity of Long Valley, Coconino County, Ariz.
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Published Year
1940-1949 (1)
Subject
Manganese ores--Arizona--Coconino County--Metallurgy (1)
Ore-dressing (1) *
Author
Ipsen, A. O. (1)
Poole, H. G. (1) *
Schack, C. H. (1)
