Table 16.-Total material (ore and waste) produced by exploration and development in the United States, by commodity and State, in 1971 1 Data may not add to totals shown because of independent rounding. Less than 1⁄2 unit. 'Antimony, beryllium, manganese ore, molybdenum, nickel, rare-earth metals, titanium (ilmenite), and vanadium. Abrasive stone, aplite, asbestos, boron minerals, clays, diatomite, feldspar, graphite, iron oxide pigments (crude), mica (scrap), pumice, tripoli, wollastonite, and zeolite. Connecticut, Hawaii, Maine, and Oklahoma. Revised. TOTAL EXPLOSIVES r2 661,581 327,596 409,525 r 21,398,702 684,166 403,444 397,998 1,485,608 820,114 470,791 438,789 962,331 479,508 455,424 1,729,694 1,897,263 1 Includes other processed blasting agents and unprocessed ammonium nitrate. 2 Includes 10,017,000 pounds liquid oxygen. Statistical Summary By Staff, Office of Technical Data Services This chapter summarizes mineral production in the United States, its island possessions, the Canal Zone, and the Commonwealth of Puerto Rico. Tables showing the principal minerals exported from and imported into the United States, and comparing world and U.S. mineral production also are included. More detailed data are contained in the commodity chapters of volume I and the State chapters of volume II. 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 in the form in which they are first extracted from the ground, but customarily includes for some minerals the product of auxiliary processing operations at or near mines. Because of inadequacies in the statistics available, some series deviate from the foregoing definition. The quantities of gold, silver, copper, lead, zinc, and tin are recorded on a mine basis (as the recoverable content of ore sold or treated). The values assigned to these quantities, however, are based on the average selling price of refined metal, not the mine value. Mercury is measured as recovered metal and valued at the average New York price for metal. The weight or volume units shown are those customarily used in the particular industries producing the commodities. Values shown are in current dollars. No adjustments of the values have been made to compensate for changes in the purchasing power of the dollar. Table 1.-Value of mineral production 1 in the United States, by mineral groups 1 Production as measured by mine shipments, sales, or marketable production (including consumption by producers). 2 Data may not add to totals shown because of independent rounding. Table 2.-Mineral production 1 in the United States Asphalt and related bitumens (native): Bituminous limestone ..short tons.. thousand cubic feet.. Coal: High purity. Natural gas. __do_. _do_-- 1,066 28,355 760 19,322,493 3,168,698 20,698,240 46,843 21,599 3,455,615 r 3,953 46,820 3,988 47,856 647 17,405 577 21,920,642 3,745,680 22,493,012 14,539 4,096,550 Natural gas liquids: Magnesium compounds from sea water and brine (except for metal). short tons, MgO equivalent.. 525,210 43,449 618,762 53,046 707,874 62,434 668,649 62,322 |