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gold
gold metallic chemical element; symbol Au [Lat. aurum =shining dawn]; at. no. 79; at. wt. 196.9665; m.p. 1,064.43°C; b.p. 2,808°C; sp. gr. 19.32 at 20°C; valence +1 or +3.
Gold is very ductile and is the most malleable metal; it can be beaten into extremely thin sheets of gold lea...
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East Coolgardie Goldfield
East Coolgardie Goldfield , Western Australia, SW Australia. It is the richest gold field in Australia. The chief mining center is the town of Kalgoorlie. Coolgardie, of little importance today, was the first gold-rush town in the area. Gold was discovered there in 1892.
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pyrite
pyrite or iron pyrites , pale brass-yellow mineral, the bisulfide of iron, FeS 2 . It occurs most commonly in crystals (belonging to the isometric system and usually in the form of cubes and pyritohedrons) but is also found in massive, granular, and stalactite form. In spite of its nickname, "...
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Copperbelt
Copperbelt mining region, N central Zambia, central Africa. A natural extension of the mineral-rich region of Katanga , the Copperbelt is one of the richest sources of copper in the world. Cobalt, selenium, silver, and gold are also produced.
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Juneau
Juneau , city (1990 pop. 26,751), state capital, SE Alaska, in the Alaska Panhandle; settled by gold miners 1880, inc. 1900. A port on Gastineau Channel, Juneau is a trade center for the Panhandle area, with an ice-free harbor and an airport. The state and federal governments are the major employers...
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gold rush
gold rush influx of prospectors, merchants, adventurers, and others to newly discovered gold fields. One of the most famous of these stampedes in pursuit of riches was the California gold rush. The discovery of gold at Sutter's Mill early in 1848 brought more than 40,000 prospectors to California w...
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Helena
Helena Capital of Montana, USA, in the w central part. It was settled by prospectors in 1864. By 1868 the population was 7500 and US$16 million worth of gold had been mined. In 1875 it was made capital of Montana Territory, becoming state capital in 1889. Industries: mineral smelting, bakery equipm...
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Au
Au symbol for the element gold .
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Ghana
Ghana officially Republic of Ghana, republic (2005 est. pop. 21,030,000), 92,099 sq mi (238,536 sq km), W Africa, on the Gulf of Guinea, an arm of the Atlantic Ocean. The capital and largest city is Accra .
Land and People
Modern Ghana comprises the former British colony of the Gold Coas...
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Colorado
Colorado , state, W central United States, one of the Rocky Mt. states. It is bordered by Wyoming (N), Nebraska (N, E), Kansas (E), Oklahoma and New Mexico (S), and Utah (W).
Facts and Figures
Area, 104,247 sq mi (270,000 sq km). Pop. (2000) 4,301,261, a 30.6% increase since the 1990 c...
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