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  • NIOSH
    Goodbye, 'Minerals And Materials;' Hello, 'Minerals Today!'

    By Harold Kennedy

    Take a good look at this issue of Minerals and Materials. This is the last issue of M&M, as it has been known within the U.S. Bureau of Mines, that you will receive. Fifteen years after it was created

    Jan 1, 1989

  • NIOSH
    Mineral Indicators - Aluminum (6cf3b0d3-8e21-4fa7-bf04-7629f02c74f4)

    The Kaiser Aluminum and Chemical Corp. announced plans to raise June ingot prices by 4 cents to 57 cents per pound. Producers? April value for 99.5 percent unalloyed aluminum ingot was at 53 cents per

    Jan 1, 1978

  • NIOSH
    Countries And The Minerals Industry

    By NEFE NONE

    Possible New U.S. Half-Dollar. - Tile George Washington Commemorative Coin Act, H.R. 3133, was introduced in the House and approved by the House Banking Committee. It would allow the minting of at lea

    Jan 1, 1981

  • NIOSH
    Mineral Indicators - Aluminum (fba062f0-b758-4019-a907-98a7ea196baa)

    Since mid-July, most domestic producers have been marketing 99.5 percent unalloyed aluminum ingot at 53-57 cents per pound. Dealers in the United States have recently quoted ingot at 52.3-52.8 cents.

    Jan 1, 1978

  • NIOSH
    Mineral Commodity Summaries 1990 - Significant Events In 1989 - Industrial Minerals

    U.S. demand for building and construction materials, such as construction aggregate, gypsum, and cement, remained strong in 1989. Cement imports declined slightly, representing about 17% of apparent c

    Jan 1, 1990

  • NIOSH
    IC 6786 Placer Mining In The Western United States - Part I. General Information, Hand-Shoveling, And Ground-Sluicing ? Introduction

    By E. D. Gardner

    Placer mining is the mining and treatment of alluvial deposits for the recovery, of their valuable minerals. The method has been used principally for mining gold, but a large proportion of the world&a

    Jan 1, 1934

  • NIOSH
    IC 6995 Reconnaissance Of Mining Districts In Humboldt County, Nev. ? Introduction

    By William O. Vanderburg

    This paper gives the results of a reconnaissance of the mining districts in Humboldt County, Nev., made during the month of June, 19373/. During the field work, virtually all the mining districts in t

    Jan 1, 1938

  • AIME
  • NIOSH
    Abrasive Materials (MATERIALS MINERALS YEARBOOK-1978)

    By W. T. Adams

    The production of natural abrasives var¬ied in quantity and value compared with 1975. Output of tripoli-type materials and garnet increased in both quantity and value; special silica stone products de

    Jan 1, 1978

  • NIOSH
    Zinc Smelting From A Chemical And Thermodynamic Viewpoint - Introduction

    By C. G. Maier

    The fundamental chemistry of zinc smelting, especially that part dealing with the chemical reduction of the zinc-oxide content of a roasted zinc ore, has been discussed by metallurgists in some detail

    Jan 1, 1930

  • NIOSH
    Mineral Facts And Problems 1975 Edition - Introduction - The Importance Of Minerals In The U.S. Economy-1776-1976

    The contribution of minerals to the growth and development of the United States is best demonstrated by the uses which have evolved during the past two centures. During pre-Revolutionary days the co

    Jan 1, 1976

  • AIME
    The Mineral Production And Resources Of China.

    By Thomas T. Read

    I. INTRODUCTION. WHEN so much has been written upon a subject on which so little definite information is available as upon this, some reason must needs be assigned for adding to the volume of literat

    Mar 1, 1912

  • NIOSH
    Bulletin 95 A Glossary of the Mining and Mineral Industry

    By Albert H. Fay

    This glossary is publi~hed- by the Bureau of Mines as a contribution' to the mining literature in the belief that it will fill a long-felt need. It contains about 20,000 terms; these include both tech

    Jan 1, 1920

  • NIOSH
    RI 3707 Briquetting Subbituminous Coal

    By V. F. Parry, John P. Goodman

    "INTRODUCTION Review of Previous Work Many investigators and certain commercial interests have recognized that the briquetting process is a practical method to convert much of what is now considered u

    Jun 1, 1943

  • NIOSH
    OFR-26-86(2) Development Of A Mechanized Scaler - Phase I - Summary

    This report describes Phase I of the project --Development of a Mechanized Scaler --performed by Battelle, Pacific Northwest Laboratories for the U.S. Bureau of Mines. The objectives of Phase I were t

    Jan 1, 1981

  • NIOSH
    A New Series Of Bureau Of Mines Reports Announced

    A new series of reports called ?Mineral Perspectives" (MP's) has been initiated by the Bureau of Mines with the publication of MP-1 titled, "Far East and South Asia" by K.P. Wang and the staff of

    Jan 1, 1977

  • NIOSH
    IC 7142R Gas Explosions In Buildings: Their Cause And Prevention ? Introduction

    By D. J. Parker

    Because of its convenience and availability, natural gas (and to a much less extent manufactured gas) in being used more generally throughout the country for domestic and industrial purposes. With thi

    Jan 1, 1941

  • NIOSH
    OFR-37-73 State Of The Art Of Down - The - Hole - Tools - History Of Down - The - Hole - Tools

    By Wendell L. Reich

    Percussion drilling dates back to the hand operated star drill and hammer. Eventually steam and compressed air were substituted for muscle power and the mechanical percussion drill was born. From the

    Jan 1, 1972

  • NIOSH
    Bulletin 135 Combustion of Coal and Design of Furnaces

    By Henry Kreisinger, F. K. Ovrrz, C. E. Augustine

    The Bureau of Mines is conducting investigations to determine how fuels belonging to or for the use of the United States Govern- ment can be utilized with greater efficiency. As a result of these inve

    Jan 1, 1917

  • CIM
    The origins of zinc and brass

    By J. E. Dutrizac, J. B. O'Reilly

    "Zinc is a relatively abundant element which occurs as both high-grade sulphide ores {sphalerite ZnS) and oxide ores which the ancients collectively termed ""calamine"" (smithsonite ZnC03 and/ or hemi

    Jan 1, 1999