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Whyalla

(Encyclopedia)Whyalla, city (1991 pop. 21,828), South Australia state, S Australia, on Spencer Gulf. The city has shipbuilding and iron and steel industries. Iron ore and iron and steel products are exported. ...

ironwork, ornamental

(Encyclopedia)ironwork, ornamental. The shaping of wrought iron, used almost exclusively until the 16th cent., is primarily an art of the blacksmith, who must work with the metal while it is at the desired stage of...

limonite

(Encyclopedia)limonite hĕmˈətīt, hēˈ– [key], yellowish to dark brown mineral, a hydrated oxide of iron, FeO(OH)·nH2O, occurring commonly in deposits of secondary origin, i.e., those formed by the alteratio...

Mesabi

(Encyclopedia)Mesabi məsäbˈē [key], range of low hills, NE Minn., once famous for its extensive iron ore deposits. The ores were found in a belt c.110 mi (180 km) long and from 1 to 3 mi (1.6–4.8 km) wide bet...

Cort, Henry

(Encyclopedia)Cort, Henry, 1740–1800, English inventor. He revolutionized the British iron industry with his use of grooved rollers to finish iron, replacing the process of hammering, and through his invention of...

blast furnace

(Encyclopedia)CE5 Blast furnace for production of iron blast furnace, structure used chiefly in smelting. The principle involved in this means of extracting metals is that of the reduction of the ores by the ac...

mixture

(Encyclopedia)mixture, in chemistry, a physical combination of two or more pure substances (i.e., elements or compounds). A mixture is distinguished from a compound, which is formed by the chemical combination of t...

Erzberg

(Encyclopedia)Erzberg ĕrtsˈbĕrkh [key], peak, 3,531 ft (1,076 m) high, in Styria, central Austria. Rising above the town of Eisenerz, the Erzberg is almost literally a mountain of iron. Its rich iron ore (about ...

Gogebic

(Encyclopedia)Gogebic gōgēˈbĭk [key], east-west mountain range, 80 mi (129 km) long and .5 to 1 mi (.8–1.6 km) wide, extending from the W Upper Peninsula, N Mich., into N Wis. It is known for its iron deposit...

ferrous sulfate

(Encyclopedia)ferrous sulfate or iron (II) sulfate, chemical compound, FeSO4. It is known as the monohydrate, FeSO4·H2O; the tetrahydrate, FeSO4·4H2O; the pentahydrate, FeSO4·5H2O; and the heptahydrate, FeSO4·7...