Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Kostick, Dennis S.; DeFilippo, Ronald J.
Fluorspar, pp. 341-357 ff. PDF (1.9 MB)
Table 1.—Salient fluorspar statistics' 1975 1976 1977 1978 1979 r~ 1L)(~ not include fluosilicic acid and imports of hydrofluoric acid and cryolite. 2F.o.b. foreign port in 1974; c.i.f. U.S. port, in 1975-78. 3Apparentconsumption includes finished shipments plus imports, minus exports, minus consumer stocks increase. 342 MINERALS YEARBOOK, 1978-79 United States: Production: Mineproduction short tons — Material beneficiated do_ - - - Material recovered do_~ Finished (shipments) do~~ Value f.o.b. mine thousand& - Exports short tons~ Value thousands_ Imports for consumption short tons - Value2 thousands~ Consumption (reported) short thns - Consumption (apparent)3 Stocks, Dec. 31: Domestic mines: Crude Finished do Consumer do~~ World:Production do__ 376,601 611,133 613,000 447,876 407,054 401 477 574,678 538,000 447,560 355,655 132,060 182,582 164,600 124,947 106,099 139,913 188,270 169,489 129,428 109,299 $14,888 $17,927 $16,479 $13,261 $12,162 1,384 4,923 6,642 8,267 14,454 $234 $764 $975 $978 $1,339 1,050,448 895,254 971,355 916,703 1,021,085 $66,899 $64,881 $69,457 $67,569 $80,090 1,244,938 1,273,498 1,162,336 1,203,448 1,135,451 1,300,067 1,120,970 1,191,000 1,062,988 1,090,665 57,833 11,386 319,552 4,985,568 88,905 14,870 277,783 r4,894,336 204,466 12,243 226,320 r5,146,217 121,329 4,322 201,158 5,282,279 166,619 5,400 226,423 5,359,882 company maintained a flotation mill and shipping facilities at Rosiclare and two heavy media plants, one at the Knight mine and the other at the Heavy Media Plant Shaft. Ozark began shaft sinking at its recently discovered Denton ore body in Hardin County and completed an 1,800-foot crosscut from its Barnett Mine to intersect more ore in the west vein area. Allied Chemical Corp. operated its Spivey mine and Minerva No. 1 mine, heavy media plant, and flotation mill in Hardin County. In September 1979, however, mining operations at Allied's mines were suspended pending the sale of these properties. Corporate decisions to divest Allied's interests in fluorspar mining prompted this suspension. The only other active fluorspar producer in Illinois was the Hastie Trucking and Mining Co., which operated several open pits and a small heavy media concentrator at Spar Mountain near Cave-in-Rock. Hastie's primary products were a metallurgical gravel spar and construction aggregate. The company leased the former Victory mine property from Allied and was preparing to begin limited underground mine production there. The only other active fluorspar operation in the East in 1978 was Frontier Spar Corp. of Salem, Ky., which temporarily shut down its Babb-Barnes mine and mill, but continued exploration in Livingstone County and further development at its Lasher-Robinson mine. Due to the decline in domestic demand and production, there were no shipments of fluorspar from Kentucky in 1979. In the West, Tonto Mining and Milling Co. operated a flotation plant during the first half of 1978 at Tonto Basin, Ariz. Western Fluorspar Co. of Gila County, Ariz., had its ore custom milled by Tonto. In 1978 and 1979, J. Irving Crowell Jr. & Sons operated its Crowell Daisy mine in Beatty, Nev., selling the output locally. D & F Minerals Co. continued operation of its Paisano mine 80 miles south of Alpine, Tex.; production from this mine was used by a fluorspar briquet producer. Although there had been no recorded fluorspar production in Tennessee since 1943, U.S. Borax and Chemical Corp. continued an active fluorspar exploration program near Sweetwater, Monroe County. Over the history of this program, more than 210 holes have been drilled, ranging in depth from 300 to 1,000 feet. A potential ore body of 26 million tons was indicated. By yearend 1979, a 490-foot exploration shaft was nearly completed. Borax plans to have a 1,700-foot exploration drift driven from the bottom of the shaft into the center of the ore body at the 500-foot level. A study of domestic fluorspar briquet producers determined that in 1978, the total maximum annual capacity for domestic briquet producers was 802,000 tons (based on a 24 hour-per-day operation).~ Actual reported production of briquets (made mostly from foreign ores) was about 200,000 tons in 1978. Historically, there has been intense competition for the major share of the steel fluxing market between the briquet producers and the gravel spar producers, who are principally located in Mexico. In 1978, briquets accounted for slightly less than half of the steel fluxing market. Eleven plants recovered about 70,000 tons of H2SiFe in 1978 as a byproduct of the wet-
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