Mineral Facts and Problems: 1960 Edition (open access)

Mineral Facts and Problems: 1960 Edition

Report issued by the Bureau of Mines over mineral characteristics, uses, and problems. Descriptions of common minerals and their uses are presented and discussed. This report includes tables, maps, illustrations, and photographs.
Date: 1960
Creator: United States. Bureau of Mines.
System: The UNT Digital Library
Mineral Facts and Problems, 1956 (open access)

Mineral Facts and Problems, 1956

Report issued by the Bureau of Mines over mineral characteristics, uses, and problems. Descriptions of common minerals and their uses are presented and discussed. This report includes tables, maps, and illustrations.
Date: 1956
Creator: United States. Bureau of Mines.
System: The UNT Digital Library
Microscopic Structure and Concentratability of the Important Iron Ores of the United States (open access)

Microscopic Structure and Concentratability of the Important Iron Ores of the United States

Outline of Problem: "This paper covers a survey of 19 ores collected from seven of the more important iron-ore districts of the United States and is a contribution by the ore-dressing section of the United States Bureau of Mines to general research program on iron and steel being conducted by the Bureau."
Date: 1936
Creator: Cooke, S. R. B.
System: The UNT Digital Library
Production of Metallurgical Alumina from Pennsylvania Nodular Diaspore Clays (open access)

Production of Metallurgical Alumina from Pennsylvania Nodular Diaspore Clays

From introduction: "This report covers work done and the estimated costs of recovering metallurgical-grade alumina from the clays found in those deposits."
Date: 1947
Creator: Conley, J. E.; Brown, R. A.; Cservenyak, F. J.; Anderberg, R. C.; Kandiner, H. J. & Green, S. J.
System: The UNT Digital Library
Coal-Washing Investigations: Methods and Tests (open access)

Coal-Washing Investigations: Methods and Tests

From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date: 1929
Creator: Yancey, H. F. & Fraser, Thomas
System: The UNT Digital Library