STRONTIUM (Data in metric tons of contained strontium,1/ unless noted) Domestic Production and Use: No strontium minerals have been produced in the United States since 1959. The most common strontium mineral, celestite, which consists primarily of strontium sulfate, was imported exclusively from Mexico. A company in Georgia was the only major U.S. producer of strontium compounds. Primary strontium compounds were used in the faceplate glass of color television picture tubes, 69%; ferrite ceramic magnets, 11%; pyrotechnics and signals, 9%; and other, 11%. Salient Statistics--United States: 1991 1992 1993 1994 1995e/ Production, strontium minerals -- -- -- -- -- Imports for consumption: Strontium minerals 14,600 19,700 11,600 16,000 15,000 Strontium compounds 9,550 13,000 15,300 20,000 22,000 Exports, compounds 1,080 650 260 110 1,300 Shipments from Government stockpile excesses -- -- -- -- -- Consumption, apparent, celestite and compounds W W W W W Price, average value of mineral imports at port of exportation, dollars per ton 77 68 73 68 72 Stocks, consumer, yearend, celestite only W W W W W Net import reliance2/ as a percent of apparent consumption 100 100 100 100 100 Recycling: None. Import Sources (1991-94): Strontium minerals: Mexico, 100%. Strontium compounds: Mexico, 84%; Germany, 15%; and other, 1%. Total imports: Mexico, 93% and Germany, 7%. Tariff: Item Number Most favored nation (MFN) Mexico Non-MFN3/ 12/31/95 12/31/95 12/31/95 Celestite 2530.90.0010 Free Free Free. Alkaline earth metals (strontium and barium) 2805.22.1000 3.7% ad val. Free 25% ad val. Compounds: Strontium nitrate 2834.29.2000 4.2% ad val. Free 25% ad val. Strontium carbonate 2836.92.0000 4.2% ad val. Free 25% ad val. Strontium oxide, hydroxide, peroxide 2816.20.0000 4.2% ad val. Free 25% ad val. Depletion Allowance: 22% (Domestic), 14% (Foreign). Government Stockpile: Stockpile Status--9-30-95 Uncommitted Committed Authorized Disposals Material inventory inventory for disposal Jan.-Sept. 95 Celestite1/ 5,100 -- 5,100 -- Prepared by Joyce A. Ober, (703) 648-7717. STRONTIUM Events, Trends, and Issues: Although there is celestite in the National Defense Stockpile, none of it is stockpile grade; its total value is listed as zero. The stockpile goal was reduced to zero in 1969, and at that time the stockpile contained both stockpile- and nonstockpile-grade material. Since then, all the stockpile-grade celestite has been sold. Although the nonstockpile-grade celestite has been offered for sale, none has been sold since 1979. The fiscal year 1996 Annual Materials Plan, announced at the end of September by the Defense Materials Stockpile Center, identified 3,300 tons of celestite to be offered for disposal. World Mine Production, Reserves, and Reserve Base:4/ Mine production Reserves5/ Reserve base5/ 1994 1995e/ United States -- -- -- 1,360,000 Algeria 5,400 5,400 China 35,000 35,000 Iran 20,000 20,000 Mexico 70,000 75,000 Other: Other: Pakistan 1,500 1,500 6,800,000 10,600,000 Spain 12,000 12,000 Tajikistan NA NA Turkey 40,000 40,000 United Kingdom 1,000 -- World total (may be rounded) 6/ 180,000 6/ 190,000 6,800,000 12,000,000 World Resources: Resources in the United States are several times the reserve base. World resources, although not thoroughly evaluated, are believed to exceed 1 billion tons. Substitutes: Although it is possible to substitute for strontium in some of its applications, such a change would adversely affect product performance and/or cost. For example, barium could replace strontium in color television picture tube glass only after extensive circuit redesign to reduce operating voltages that produce harmful secondary X-rays. Barium replacement of strontium in ferrite ceramic magnets would decrease the maximum energy and temperature characteristics of the magnet. Substituting for strontium in pyrotechnics would be impractical because the desired brilliance and visibility are imparted only by strontium and its compounds. e/Estimated. NA Not available. W Withheld to avoid disclosing company proprietary data. 1/The strontium content of celestite is 43.88%; this amount was used to convert units of celestite. 2/Defined as imports - exports + adjustments for Government and industry stock changes. 3/See Appendix B. 4/Metric tons of strontium minerals. 5/See Appendix C for definitions. 6/Excludes Tajikistan. Mineral Commodity Summaries, January 1996