Bureau of Mines / Minerals yearbook: Metals and minerals 1977
Year 1977, Volume 1 (1977)
Haines, Stanley K.
Vermiculite, pp. 989-992 PDF (375.2 KB)
VERMICULITE Table 3.—Vermiculite exfoliating plants in the United States in 1977 —Continued 991 company state County Nearest city MacArthurCo Mica Pellets, Inc Patterson VermiculiteCo Robinson InsulationCo Minnesota illinois SouthCarolina~ Montana North Dakota - - - - Ramsey DeKaib Laurens Cascade Ward St.PauL DeKaib. Lanford. GreatFalla Minot~ SchmelzerSalesAssociates,Inc TheScbundlerCo 0. M. Scott Strong-LiteProducts SupremePerliteCo VermiculiteofHawali,Inc Vermiculite-Intermountain, Inc VermiculiteProducts, Inc Volite, Inc Florida NewJersey Ohio Arkansas Oregon Hawaii Utah Texas do Hilisborough Middlesex Union Jefferson Multnomah Honolulu Salt Lake Harris Llano Tampa. Metuchen. Marysville. PineBluff. Portland. Honolulu. Salt Lake City. Houston. Llano. CONSUMPTION AND USES The end-use pattern shifted substantially, through a large increase in loose-fill insulation and a drop in premixes. The principal end-use categories were insulation, 89% (up 10 percentage points); aggregate, 31°A~ (down 10 percentage points); agriculture, 28%; and miscellaneous, 2%. One explanation for the increase in demand for loose-fill inslllation is that U.S. consumers became convinced of the need to insulate their homes, causing an increase in demand for all forms of home insulation. Some of the other insulating materials underwent a period of tight supply, thereby throwing more business to the vermiculite industry. Additionally, about 21,000 tons of crude vermiculite was consumed for various end uses without exfoliation. PRICES According to the Bureau of Mines canvass, the average value of domestic crude vermiculite increased 12%, from $46.16 per ton in 1976 to $51.75 in 1977. The average value of exfoliated vermiculite increased $1.02 per ton to $157.42 in 1977, f.o.b. mine or plant. Engineering and Mining Journal quoted nominal yearend prices for crude vermiculite as follows: Per short ton, f.o.b. mine, domestic crude, $48 to $~T5; c.i.f. Atlantic ports, Republic of South Africa crude, $60 to $80. FOREIGN TRADE Exports of crude vermiculite to Canada Mont. About 40,000 tons of crude vermicuincreased to 45,000 tons in 1977. The ver- lite was imported duty free from the Repubmiculite was shipped primarily from Libby, lic of South Africa. WORLD REVIEW Canada.—A total of 59,471. tonS of crude vermiculite was imported in 1977, from the United States ~nd .the Republic of South Africa. The Provinces receiving the most vermiculite were Quebec, 23,800 tons; Ontario, 15,000 tons; Alberta, 9,700 tons; Manitoba, 6,000 tons; and British Columbia, 4,500 tons. The end-use pattern for 1976 was as follows: Loose-fill insulation, 71.9%; horti-. culture, 8.8%; insulating concrete, 7.3%; plaster, 2%; and other uses (including fireproofing and barbecue base), 10%.2 Japan.—Production of crude vermiculite in Japan in 1977 was 15,000 tons, compared with 14,000 tons in 1976. The deposits are generally of lower quality vermiculite. The
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