01461cam a22003371a 4500 gs 47000046 DLC 20260227111352.0 750805s1946 mnua b 000 0 eng c gs 47000046 (OCoLC)1511541 U.S. Geol. survey. Library ScU OCoLC MnHi DLC premarc TN403.M6 G68 Gruner, John W. (John Walter), 1890- The mineralogy and geology of the taconites and iron ores of the Mesabi Range, Minnesota / by John W. Gruner. St. Paul, Minn. : Office of the Commissioner of the Iron Range Resources and Rehabilitation : in cooperation with the Minnesota Geological Survey, 1946. ix, 127 p., 20 p. of plates : ill. ; 23 cm. Includes bibliographical references (p. 120-122). One folded ill. in pocket. Cover title: Mineralogy and geology of the Mesabi Range. Iron ores Minnesota Mesabi Range. Geology Minnesota Mesabi Range. Mineralogy Minnesota Mesabi Range. Iron ores Geology Minnesota Mesabi Range. Taconite Minnesota Mesabi Range. Mesabi Range (Minn.). Minnesota. Office of Commissioner of Iron Range Resources and Rehabilitation. Minnesota Geological Survey. Mineralogy and geology of the Mesabi Range. 28128 28128