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1
Coal mining - Wikipedia
In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a "pit", and above-ground mining structures are ... en.wikipedia.org
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PIT COAL Definition & Meaning - Merriam-Webster
The meaning of PIT COAL is coal mined from the earth : mineral coal —distinguished from charcoal. www.merriam-webster.com
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Open-pit mining - Wikipedia
Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. en.wikipedia.org
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pit-coal
pit-coal Now rare or arch. [f. pit n.1 (sense 6) + coal.] Coal obtained from pits or mines (as distinguished from charcoal, coal n. 4: formerly called also sea-coal, now usually simply coal, coal n. 5). See also quot. 1883.1617 Moryson Itin. iii. 141 The greatest quantitie and best kind of pit-coale... Oxford English Dictionary
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Coal mining - Underground, Surface, & Drilling | Britannica
The open-pit method is generally practiced where thick coal seams are overlain by thick or thin overburden; it is also used for mining steeply ... www.britannica.com
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Pit-Coal - British & Exotic Mineralogy - Nicholas Rougeux
This bituminous stratum is commonly somewhat shaly in this sort of coal: the other part is mostly pure charcoal, and often exhibits the shape of branches ... www.c82.net
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Open-pit coal mining in the United Kingdom
Open-pit coal mining in the United Kingdom is in decline, and is planned to end in November 2023. Output has fallen every year since 2010. In 2010, the United Kingdom was forecast to produce about of coal a year from open-pit mines. Most came from Scotland, with the largest operator there being the ... wikipedia.org
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Open-Pit Coal Mining: A Long & Surprising History
Open-pit coal mining, the method of extracting coal deposits near the Earth's surface, boasts a surprisingly long and dynamic history. laszirhusa.com
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Open Pit Coal Mining Production - Numa Hammers
Girard Coal runs a highly productive open pit coal mine in Girardville, PA where they produce approximately 250,000 tons of anthracite coal per year to be used ... www.numahammers.com
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COAL PIT Definition & Meaning - Dictionary.com
noun · a pit where coal is dug. · a place where charcoal is made. Discover More. Word History and Origins. Origin of coal pit. before 1050; ... www.dictionary.com
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Big Pit National Coal Museum
Big Pit National Coal Museum () is an industrial heritage museum in Blaenavon, Torfaen, Wales. A working coal mine from 1880 to 1980, it was opened to the public in 1983 as a charitable trust called the Big Pit (Blaenavon) Trust. By 1 February 2001 Big Pit Coal Museum was incorporated into the Natio... wikipedia.org
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pig-metal
ˈpig-ˌmetal [f. pig n.1 7 + metal: cf. sow-metal.] Metal, usually iron, in the form of pigs.1731 Gentl. Mag. I. 167 [He] proposes with Pit-coal Fire to make Bar Iron from Pig-metal. 1761 Chron. in Ann. Reg. 73/1 His new invented method of making malleable iron from pig or sow metal. 1831 J. Holland ... Oxford English Dictionary
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Coke (fuel)
In 1590, a patent was granted to the Dean of York to "purify pit-coal and free it from its offensive smell". In 1627, a patent was granted to Sir John Hacket and Octavius de Strada for a method of rendering sea-coal and pit-coal as useful as charcoal for burning wikipedia.org
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sordavalite
sordavalite Min. (ˈsɔːdəvælaɪt) Also sordawal(l)ite. [ad. Sw. sordawalit (Nordenskiöld, 1820), f. Sordawala, -vala, in Finland, its locality.] A vitreous mineral substance found in diabase.1823 W. Phillips Min. (ed. 3) 210 Sordawalite..is described as being nearly black. 1850 Ansted Elem. Geol., Min... Oxford English Dictionary
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colker
▪ I. coke, n.1 (kəʊk) Also 7–9 coak, 8 coake, cowke. [Known only from the 17th c., when classed by Ray as a North-country word. Possibly the same as the northern colk n. (also spelt coke) a core, coke being viewed as the hard core of the coal left after other parts have been consumed. The early use ... Oxford English Dictionary
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