Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
Ballard, Rose L.
Statistical summary, pp. 1-31 ff. PDF (2.8 MB)
Table l.—Value of crude nonfuel mineral production' in the United States, by mineral group (Million dollars) Metals Nonmetals Total r~ ' Production as measured by mine shipments, sales, or marketable production (including consumption by producers). *6,930 19,821 23,966 1Statistical Summary By Rose L. Ballard' This chapter summarizes data on crude nonfuel mineral production for the United States, its island possessions, and the Commonwealth of Puerto Rico. Included also are tables that show the principal nonfuel mineral commodities exported from and imported into the United States, and that' compare world and U.S. mineral production. The detailed data from which these tables were derived are contained in the individual commodity chapters of volume I and in the State chapters of volume II of this edition of the Minerals Yearbook. Although crude mineral production may be. measured at any of several stages of extraction and processing, the stage of measurement used in this chapter is what is normally termed "mine output." It usually refers to minerals or ores in the form in which _________ they are first extracted from the ground, ' Statlsti~WJ~ B~ch of Domestic Data. but customarily includes the output from auxiliary processing at or near the mines. Because of inadequacies in the statistics available, some series deviate from the fore going definition. For gold, silver, copper, lead, zinc, and tin, the quantities are recorded on a mine basis (as the recoverable content of' ore sOld or treated). However, the values assigned fi these quantities are based on the averate selling price of refined metal not the mine value Mercury is measured as recovered metal and valued at the average New York pricefor the metal. The weight or volume units shown are those customarily used in the particular industries producing the commodities. Values shown are in current dollars1 with no adjustments made to compensate ' for changes in the purchasing' power of the dollar. 5,228 11,702 1978 6,296 13,525 1979 8,517 15,449
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