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taconite

[tak-uh-nahyt] /ˈtæk əˌnaɪt/
noun
1.
a low-grade iron ore, containing about 27 percent iron and 51 percent silica, found as a hard rock formation in the Lake Superior region.
Origin
1890-1895
1890-95, Americanism; named after the Taconic mountain range (east of the Hudson River); see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for taconite
  • taconite contains low-grade iron in fine specks and bands.
British Dictionary definitions for taconite

taconite

/ˈtækəˌnaɪt/
noun
1.
a fine-grained sedimentary rock containing magnetite, haematite, and silica, which occurs in the Lake Superior region: a low-grade iron ore
Word Origin
C20: named after the Taconic Mountains in New England
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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