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Gongo Sôco
Gongo Soco was a gold mine in the state of Minas Gerais, Brazil, to the east of Belo Horizonte in the mid-19th century. It was worked by skilled miners from Cornwall and by less skilled Brazilian labourers and slaves. Machinery powered by a water wheel and a steam engine was used to pump out the mine, operate the lifts, and operate the grinding mills where the gold was separated from the ore. The mine was closed when the gold ran out, but was later reopened as an iron ore mine. Recently the iron mine was also closed. Etymology The origins of the name "Gongo Soco" are obscure. One version is that when there was a theft in the mine a gong was sounded, but nobody listened. Another is that a slave from the Congo was found squatting ("soco") while burying a gold deposit. Gold mine A Bitencourt prospector found gold in a stream that cuts through the region in 1745. The land was later inherited by João Baptista Ferreira de Souza Coutinho, Baron of Catas Altas. He sold it to the Impe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barão De Cocais
Barão is a municipality in the state of Rio Grande do Sul, Brazil. It includes the districts Arroio Canoas, Francesa Alta, General Neto and Francesa Baixa. Barão is 80 km from Porto Alegre. The municipality is bordered by Carlos Barbosa (north), São Vendelino (east), Bom Princípio (southeast), Tupandi (southeast), São Pedro da Serra (south), Salvador do Sul (southwest), Poço das Antas (southwest), and Boa Vista do Sul (northwest). The residents are primarily of German Brazilian descent. See also *List of municipalities in Rio Grande do Sul This is a list of the municipalities in the state of Rio Grande do Sul (RS), located in the South Region of Brazil. Rio Grande do Sul is divided into 497 municipalities, which are grouped into 35 microregions, which are grouped into 7 mesoregio ... References External links www.cnm.org.brmunicipal history Municipalities in Rio Grande do Sul {{RioGrandedoSul-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Mines In Brazil
Iron is a chemical element; it has symbol Fe () and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most abundant element in the Earth's crust, being mainly deposited by meteorites in its metallic state. Extracting usable metal from iron ores requires kilns or furnaces capable of reaching , about 500 °C (900 °F) higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BC and the use of iron tools and weapons began to displace copper alloys – in some regions, only around 1200 BC. That event is considered the transition from the Bronze Age to the Iron Age. In the modern world, iron alloys, such as steel, stainless steel, cast iron and special steels, are by far the most common industrial metals, due to their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mines In Brazil
Gold is a chemical element; it has chemical symbol Au (from Latin ) and atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second-lowest in the reactivity series. It is solid under standard conditions. Gold often occurs in free elemental (native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
