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platinite

(Encyclopedia)platinite, alloy that is 46% nickel and 54% iron. It is used in the manufacture of electric lightbulbs because its coefficient of expansion, i.e., the rate at which its volume increases with temperatu...

alloy

(Encyclopedia)alloy ălˈoi, əloiˈ [key] [O. Fr.,=combine], substance with metallic properties that consists of a metal fused with one or more metals or nonmetals. Alloys may be a homogeneous solid solution, a he...

Bessemer, Sir Henry

(Encyclopedia)Bessemer, Sir Henry bĕsˈəmər [key], English engineer and inventor, b. Charleton, Hertfordshire. He made experiments to obtain stronger material for gun manufacture and discovered the basic princip...

Fagersta

(Encyclopedia)Fagersta fäˈgərstäˌ [key], city, Västmanland co., S central Sweden. It is an industrial ...

Bell Island

(Encyclopedia)Bell Island, island, SE N.L., Canada, in Conception Bay, off the Avalon Peninsula, Newfoundland. The island is 6 mi (9.7 km) long and 3 mi (4.8 km) wide. Its famous undersea iron mines were closed in ...

Man, town, Côte d'Ivoire

(Encyclopedia)Man, town (1996 est. pop. 112,600), W central Côte d'Ivoire, at the foot of the Toura Mts. It is an administrative and commercial center for a region producing coffee, cacao, kola nuts, rice, and cas...

Kostyantynivka

(Encyclopedia)Kostyantynivka kəstyäntēˈnəfkə [key], Rus. Konstantinovka, city (1989 pop. 108,000), in the Donets Basin of Ukraine. It is an iron, zinc, steel, and glass making center. ...

Karabük

(Encyclopedia)Karabük käräˈbük [key], city (1990 pop. 104,869), N Turkey. It was built in the 1930s as the seat of the iron and steel industry of Turkey. Nearby are the Zonguldak coal fields. ...

Bergisch-Gladbach

(Encyclopedia)Bergisch-Gladbach bĕrˈgĭsh-glätˈbäkhˌ [key], city, North Rhine–Westphalia, W Germany; chartered 1856. ...

biotite

(Encyclopedia)biotite bīˈətītˌ [key], iron-rich variety of phlogopite, most abdunant of the mica minerals. ...