taconite

taconite
/tak"euh nuyt'/, n.
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.
[1890-95, Amer.; named after the Taconic mountain range (east of the Hudson River); see -ITE1]

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Low-grade iron formation (e.g., in Minnesota).

Recovery of the iron requires fine grinding and concentration of iron-bearing phases (see mineral processing), which are then formed into pellets suitable for blast furnaces. As high-grade deposits of iron ore have become depleted, taconite deposits have increased in importance.

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      a low-grade siliceous iron formation in Minnesota, U.S., from which high-grade iron ore is derived. The iron formation consists of fine-grained silica with variable ratios of hematite and magnetite totaling less than 30 percent iron. Recovery of the iron requires fine grinding and concentration of iron-bearing phases, which in turn are formed into pellets suitable for blast furnaces. As high-grade deposits of iron ore have become depleted, taconite deposits have increased in importance as a source of iron ore.

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Universalium. 2010.

Look at other dictionaries:

  • Taconite — is an iron bearing, high silica, flint like rock. It is a Precambrian sedimentary rock referred to as a banded iron formation due to the typical alternating iron rich layers and shale or chert layers. The very finely dispersed iron content,… …   Wikipedia

  • Taconite — Taconite, MN U.S. city in Minnesota Population (2000): 315 Housing Units (2000): 150 Land area (2000): 4.883090 sq. miles (12.647144 sq. km) Water area (2000): 0.364056 sq. miles (0.942901 sq. km) Total area (2000): 5.247146 sq. miles (13.590045… …   StarDict's U.S. Gazetteer Places

  • Taconite, MN — U.S. city in Minnesota Population (2000): 315 Housing Units (2000): 150 Land area (2000): 4.883090 sq. miles (12.647144 sq. km) Water area (2000): 0.364056 sq. miles (0.942901 sq. km) Total area (2000): 5.247146 sq. miles (13.590045 sq. km) FIPS… …   StarDict's U.S. Gazetteer Places

  • taconite — ☆ taconite [tak′ə nīt΄ ] n. [< Taconic, old name for rock formations first identified in the Taconic Range (in Vt. and Mass.) + ITE1] an iron bearing chert containing from 25 to 35 percent hematite and magnetite: it is a low grade iron ore… …   English World dictionary

  • taconite — noun Etymology: Taconic Range Date: 1892 a flintlike rock high enough in iron content to constitute a low grade iron ore …   New Collegiate Dictionary

  • taconite — noun a low grade flint like iron ore containing 20 30% iron …   Wiktionary

  • Taconite — noun a proprietary software tool for developing Ajax enabled Internet applications …   Wiktionary

  • Taconite — Ta|co|ni|te [tako..., auch ... nitə] die (Plur.) <nach den Taconic Mountains der nördlichen Appalachen u. zu 2↑...it> aus dem Präkambrium stammende metamorphe gebänderte Eisenquarzite …   Das große Fremdwörterbuch

  • taconite — n. low grade iron ore …   English contemporary dictionary

  • taconite — [ takənʌɪt] noun a low grade iron ore consisting largely of chert. Origin early 20th cent.: from the Taconic Range of mountains, US, + ite1 …   English new terms dictionary

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