taconiten.
/ˈtakənʌɪt/, U.S. /ˈtækəˌnaɪt/ Geology.
A type of chert used as an iron ore in parts of North America.
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the world > the earth > structure of the earth > constituent materials > stone > [noun] > hard stone > chert
chert1686
hornstone1728
horn-flint1803
taconite1905
the world > the earth > minerals > ore > [noun] > metal ore > iron ore > others
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yellow share1590
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mush1686
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vignite1846
siderite1848
junckerite1865
needle iron-ore1867
xanthosiderite1868
specularite1892
pitch ore1896
minette1902
taconite1905
the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > cryptocrystalline quartz > chert > others
taconite1905
1905 Econ. Geol. I. 48 In the Mesabi district the local name ‘taconite’ is applied to the ferruginous chert.
1951 Engineering 22 June 761/2 To be able to take a hard ore, such as taconite, separate the magnetite and silica by grinding the material down to pass a 300-mesh sieve, and agglomerate the concentrates by pelletising, at a price to compete with imported ores, was no mean achievement.
1981 D. R. Coates Environmental Geol. v. 104/1 Taconite is a low-grade ore of iron which is the source of most current U.S. iron production.
Compounds
General attributive.
taconite mine n.
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1974 Sumter (S. Carolina) Daily Item 23 Apr. 7 b/7 Reserve, which..produces 15 per cent of the iron ore used in the nation's steelmaking blast furnaces, also closed its taconite mine at Babbitt.
taconite ore n.
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1975 Sci. Amer. Nov. 52/3 The place of the high-grade ores was then taken by taconite ores containing iron in the form of finely disseminated magnetite.
taconite pellet n.
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1958 J. Szarkowski Face of Minnesota 270 By 1948 the first mass-produced taconite pellets reached the blast furnaces.
taconite tailing n.
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1975 Telegraph (Brisbane) 18 Mar. 12/4 The refinery's discharge of taconite tailings.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).
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n.1905