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Foreword by Paul Zinner
Aluminum and bauxite by H F Kurtz and D D Blue
Anthracite by J W Buch and J A Corgan
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Africa alloys alumina aluminum annual anthracite antimony arsenic average barite barrels bauxite beryllium bismuth Bureau of Mines byproduct cadmium Canada capacity carbon cement cents chemical clay coal cobalt coke commercial companies compounds concentrates consumed consumption containing copper Corp corundum cost countries crude demand deposits diamond domestic drilling economic electric estimated expanded exports feldspar fluorspar foreign fuel furnaces germanium gold grade graphite gypsum helium important increased indium industry iron jewel bearings kyanite lead lignite lithium magnesia magnesium manganese manufacture ment metal metallurgical methods Mexico mica million tons minerals Mines Rept molybdenum mullite natural gas nickel operations output oxide percent perlite petroleum plants pounds principal problems production quantities recovered recovery refineries refining refractories requirements reserves rock scrap shale shipments Short tons Short tons Value Smelting sources steel Stockpile sulfide supply synthetic Table temperature tion United World zinc