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Dielectric Separation of Minerals

Description: From Introduction: "The Bureau conducted the research described in this bulletin to provide a fundamental understanding of the design and operating characteristics of a dielectric separator."
Date: unknown
Creator: Jordan, C. E. & Sullivan, G. V.
Partner: UNT Libraries Government Documents Department

An Appraisal of Minerals Availability for 34 Commodities

Description: From Program Overview: "This bulletin summarizes and updates availability information published in individual mineral commodity appraisals since 1979. it also marks achievement, after 15-yr systems and data development history, of a major Bureau goal to build computer-based systems and the necessary staff infrastructure to perform timely, commodity-wide assessments with comparable cost frameworks."
Date: unknown
Creator: United States. Bureau of Mines.
Partner: UNT Libraries Government Documents Department

Passage of Solid Particles Through Rotary Cylindrical Kilns

Description: Technical paper issued by the Bureau of Mines over studies conducted on rotary kilns. As stated in the introduction, "the object of this study was to determine the factors that influence the rate of progress of crushed materials through a kiln" (p. 1). This paper includes tables, illustrations, and photographs.
Date: 1927
Creator: Sullivan, John D.; Maier, Charles G. & Ralston, Oliver C.
Partner: UNT Libraries Government Documents Department

Mineral Resources of the Malagasy Republic

Description: Report issued by the U.S. Bureau of Mines discussing mineral resources of the Malagasy Republic. As stated in the introduction, "this survey presents essential data from which a preliminary appraisal of mineral-development potentials can be made and includes minerals not of primary interest to investors" (p. 1). This report includes maps, tables, and illustrations.
Date: 1963
Creator: Murdock, Thomas G.
Partner: UNT Libraries Government Documents Department

Mercury: A Materials Survey

Description: Report issued by the U.S. Bureau of Mines discussing materials surveys conducted on mercury. As stated in the foreword, "the surveys dealing with metals and minerals summarize the demand-supply position in the United States and include information on production, imports, consumption, exports, substitutes, and pertinent history" (p. v). This report includes maps, tables, illustrations, and photographs.
Date: 1959
Creator: Pennington, James W. & Bailey, Edgar H.
Partner: UNT Libraries Government Documents Department

Mica: A Materials Survey

Description: Report issued by the U.S. Bureau of Mines discussing mineral surveys conducted on mica. Physicality, history, types, methods, and uses of mica are presented. This report includes maps, tables, illustrations, and photographs.
Date: 1962
Creator: Skow, Milford L.
Partner: UNT Libraries Government Documents Department

Studies on the Alkalinity of Some Silicate Minerals

Description: Abstract: By grinding minerals under water it has been found that they yield relative and reproducible measurements of the hydrogenion concentration resulting from their hydrolysis. Many silicate minerals and two glasses have been studied in this way by a colorimetric method of determining hydrogen-ion concentration, and some of them have been studied more quantitatively by means of the hydrogen electrode. The results of these tests are a rough index of the weathering qualities of different silicate minerals. The effect of silicate minerals on underground waters and upon geochemical changes is discussed.
Date: 1934
Creator: Stevens, R. E.
Partner: UNT Libraries Government Documents Department

The Wet Thiogen Process for Recovering Sulphur from Sulphur Dioxide in Smelter Gases: A Critical Study

Description: From Introduction: "A critical study of the wet Thiogen process for extracting sulphur from smoke of smelters is one of several investigations related to the general smelter-smoke problem that are being conducted under direction of the Bureau of Mines. Work on the Thiogen process was started again in January, 1916, in the laboratories of the new mining experiment station at Berkeley, Cal., and was continued during the spring of 2016 until a point was reached where it was felt that the essential parts of the process had been carefully covered, and that some definite statements concerning the technical features and possibilities of the process, as given in this report, were warranted."
Date: 1917
Creator: Wells, A. E.
Partner: UNT Libraries Government Documents Department

Visual-Arc Spectroscopic Analysis

Description: From Summary and Conclusions: "The methods described in parts I and II are used largely to detect the cationic constituents of minerals and boiler-scale materials by means of atomic or line spectra. Part III gives results of an investigation of the molecular or band spectra of the visible region made to determine whether any additional anions could be detected by this means. Part IV lists equipment for visual spectroscopic analysis that is available commercially."
Date: 1953
Creator: Peterson, Maurice J. & Jaffe, Howard W.
Partner: UNT Libraries Government Documents Department

Screen Sizing of Coal, Ores and Other Minerals

Description: From Introduction: "The data in this bulletin were obtained during an investigation of screening practice by the University of Illinois engineering experiment station and the United States Bureau of Mines under a cooperative agreement between them and the State of Illinois Geographical Survey Division. The present investigation was limited to a study of screening as applied in preparing mineral products with the expectation of obtaining more comprehensive information on screening machinery."
Date: 1925
Creator: Holbrook, E. A. & Fraser, Thomas
Partner: UNT Libraries Government Documents Department

Vanadium: A Materials Survey

Description: Report issued by the U.S. Bureau of Mines discussing vanadium. History, geology, properties, production methods, and uses of vanadium are presented. This report includes maps, tables, illustrations, and photographs.
Date: 1961
Creator: Busch, Phillip M. & Fischer, R. P.
Partner: UNT Libraries Government Documents Department

Asbestos: A Materials Survey

Description: Report issued by the U.S. Bureau of Mines discussing asbestos mining. As stated in the introduction, "this report gives primary consideration to the types and grades of asbestos that are of greatest importance in the program of military preparedness-namely, the spinning grades of chrysotile, both foreign and domestic, and the amosite and crocidolite obtained only from foreign sources" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1959
Creator: Bowles, Oliver
Partner: UNT Libraries Government Documents Department

Mineral Resources of Upper Missouri River Basin, Montana: Fort Peck Reservoir to Morony Dam

Description: Report issued by the Bureau of Mines discussing the minerals produced in the Missouri River Basin of Montana. The mineral resources of the area are investigated, analyzed, and presented. This report includes tables, maps, and illustrations.
Date: 1964
Creator: Hubbard, C. R.; Roby, Robert N.; Henkes, W. C. & Biggs, P.
Partner: UNT Libraries Government Documents Department