Gold Mines and Mining | Encyclopedia.com
GOLD MINES AND MININGGOLD MINES AND MINING. Gold mining in the United States began in the foothills of the Appalachian Mountains in North Carolina following the chance discovery of a nugget of free gold in 1799. Source for information on Gold Mines and Mining…
South Africa - Gold mining - Encyclopedia Britannica
South Africa - South Africa - Gold mining: Prospectors established in 1886 the existence of a belt of gold-bearing reefs 40 miles (60 km) wide centred on present-day Johannesburg. The rapid growth of the gold-mining industry intensified processes started by the diamond boom: immigration, urbanization, capital investment, and labour migrancy. By 1899 the gold industry attracted investment worth ...
Gold processing - Encyclopedia Britannica
Gold processing, preparation of the ore for use in various products. Native gold is the most common mineral of gold, accounting for about 80 percent of the metal in the Earth’s crust. It occasionally is found as nuggets as large as 12 millimetres (0.5 inch) in diameter, and on rare occasions ...
Mining - Encyclopedia Britannica
Mining, process of extracting useful minerals from the surface of the Earth, including the seas.A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite stone composition and distinctive physical properties or molecular structure. (One organic substance, coal, is often discussed as a mineral as well.) Ore is a metalliferous mineral, or an aggregate ...
gold | Facts, Properties, & Uses | Britannica
Gold (Au), stone element, a dense lustrous yellow precious metal of Group 11 (Ib), Period 6, of the periodic table.Gold has several qualities that have made it exceptionally valuable throughout history. It is attractive in colour and brightness, durable to the point of virtual indestructibility, highly malleable, and usually found in nature in a comparatively pure form.
Gold - Wikipedia
Gold also dissolves in alkaline solutions of cyanide, which are used in mining and electroplating. Gold dissolves in mercury, forming amalgam alloys, but this is not a stone reaction. A relatively rare element, gold is a precious metal that has been used for coinage, jewelry, and other arts throughout recorded history.
Gold Mining Water Race, Windeyer - Wikipedia
Gold Mining Water Race is a heritage-listed piece of mining infrastructure at Old Hargraves Road, Windeyer, Mid-Western Regional Council, New South Wales, Australia. It was built from 1855 to 1865 by Chinese miners, probably from Southern China.
Chris Ralphs Gold Prospecting Encyclopedia: Information ...
Chris Prospecting Encyclopedia, Your best source of information on: Gold nuggets, gold panning, how to design and build your own mining equipment, metal detecting for nuggets, dredging for gold, prospecting books, California prospecting, 49ers, rock hounds, investing, mining stocks, mother lode, sulfides, turquoise, jewelry, silver, gold, gems, gold flakes, prospecting adventures, digging ...
Gold rush - Encyclopedia Britannica
Gold rush, rapid influx of fortune seekers to the site of newly discovered gold deposits. Major gold rushes occurred in the United States, Australia, Canada, and South Africa in the 19th century. The first major gold strike in North America occurred near Dahlonega, Georgia, in the late 1820s. It
Gold and gold mining – Te Ara Encyclopedia of New Zealand
Jun 12, 2006 · In the 19th century discovering gold was a way out of poverty. From the 1860s gold rush followed gold rush, and thousands flocked to the fields. But the work was harsh, with days spent digging in cold creek beds. Only a lucky few found riches in the rock. However, the collective value of the gold...
Gold prospecting - Wikipedia
Gold prospecting is the act of searching for new gold deposits. Methods used vary with the type of deposit sought and the resources of the prospector. Although traditionally a commercial activity, in some developed countries placer gold prospecting has also become a popular outdoor recreation.
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