Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
Aase, James H.; West, Wanda J.
Minnesota, pp. 277-290 PDF (1.5 MB)
277The Mineral Industry of Minnesota This chapter has been prepared under a Memorandum of Understanding between the Bureau of Mines, U.S. Department of the Interior, and the Mineral Resources Research Center, University of Minnesota, for collecting information on all nonfuel minerals. By James H. Aase' and Wanda J. West2 The value of nonfuel mineral production in Minnesota for 1978 and 1979 was $1,725 million and $2,068 million, respectively. The increase in value of the 1978 production over that of the previous year was attributed to a rebound from a 138-day steelworkers' strike in the State's iron ore mining industry in 1977, coupled with rises in the unit values for iron ore and other mineral commodities. Nationally, Minnesota was first among the States in value of nonfuel mineral production in 1978 and second in 1979. Production in 1978 was reported from approximately 550 operations located in 83 of the State's 87 counties. St. Louis County maintained its lead in terms of mineral quantity and value output. Mineral production valued in excess of $1 million was recorded in 25 counties. Two metallic and seven nonmetallic mineral commodities were produced in Minnesota during 1978 and 1979. Iron ore ranked first in terms of value, exceeding the second Table 1.—Nonfuel mineral production in Minnesota1 1977 1978 1979 Mineral Quantity ~l (thousands) Quantity VI (thousands) Quantity Vl (thousands) Clays2 - thousand short tons Gem stones - - - - - - - Iron ore (usable) thousand long tons, gross weight_ 163 NA . 30,245 $276 15 782,627 174 NA 56,473 $2,090 5 1,627,099 135 NA 59,682 $1,905 5 1,965,710 Lime - - thousand short tons - Manganiferous ore - - short tons - Peat. - - - - thousand short tons_ - Sand and gravel do - - - Stone: Crushed do - - - Dimension do - - - Combined value of abrasive stone (1977 and 1979), clays (kaolin), industrial sand (1978-79), and values indicated by symbol W - - - - - - - Total 123 166,440 28 30,713 7,831 33 XX 4,315 W 1,280 59,629 16,991 8,133 2,337 116 253,399 20 ~31,080 9,666 35 XX 4,263 W 716 ~54,967 20,734 9,356 5,502 140 181,503 21 ~30,939 9,751 38 XX 5,133 W 827 ~55,427 22,175 11,543 5,265 XX * 875,603 XX 1,724,732 XX 2,067,990 NA Not available. W Withheld to avoid disclosing com~ny 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 kaolin; value included in "Combined value" figure. 3Excludes industrial sand; value included in "Combined value" figure.
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