Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
Hill, James J.; Prosser, L. J., Jr.
Illinois, pp. 177-187 ff. PDF (1.1 MB)
177The Mineral industry of Illinois This chapter has been prepared under a Memorandum of Understanding between the Bureau of Mines, U.S. Department of the Interior, and the Illinois State Geological Survey for collecting information on all nonfuel minerals. By James J. Hi11~ and L. J. Prosser, Jr.2 The value of Illinois' nonfuel mineral production was $440 million in 1978 and $477 million in 1979. During these years, portland cement, sand and gravel, and stone accounted for most of the State's total nonfuel mineral production value. Other commodities produced were clays, fluorspar, lime, masonry cement, and tripoli. Barite, lead, silver, and zinc were recovered as coproducts from fluorspar processing operations. Major commodities imported for processing included gypsum, crude iron oxide pigments, perlite, and vermiculite. In 1979, silicon carbide, an artificial abrasive, was produced in Illinois for the first time. Table 1.—Nonfuel mineral production in Illinois' 1977 1978 ' 1979 Mineral Quantity Value (thousands) Quantity Value (thousands) Quantity Value (thou sands) Cement, portland thousand short ton& — Clays2 do____Fluorspar short tons..~. Gemstones 1,823 951 131,218 NA $61,849 5,117 13,941 2 2,112 742 115,859 NA $80,242 3,185 12,452 15 1,889 542 W NA $79,604 2,355 W 15 Peat thousand short ton&. -Sand and gravel do_ — - -Stone: 82 37,633 1,478 101,230 84 43,450 1,594 127,900 86 45,448 1,610 134,190 Crushed do~Dimension do.~.. 57,074 3 135,964 109 62,453 3 160,352 122 63,551 3 188,130 128 Combined value of barite, cement (masonry), clays (fuller's earth), lead, lime, silver, tripoli, zinc, and values indicated bysymboiW Total XX 48,641 XX 53,692 XX 70,498 XX 368,331 XX 439,554 XX 476,530 NA Not available. W Withheld to avoid disclosing company proprietary data; value included in "Combined value" figure. XX Not applicable. ' Production as measured by mine shipments, sales, or marketable production (including consumption by producers). 2Excludes fuller's earth; value included in "Combined value" figure.
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