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torbanite

[tawr-buh-nahyt] /ˈtɔr bəˌnaɪt/
noun
1.
Petrology. a dark-brown oil shale containing a large amount of carbonaceous matter.
Origin
1855-1860
1855-60; named after Torbane (Hill), in Linlithgowshire, Scotland; see -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Article for torbanite

boghead coal

mineral substance intermediate between oil shale and coal. Whereas destructive distillation of coals produces compounds of carbon and hydrogen with carbon atoms linked in six-membered rings, torbanite produces paraffinic and olefinic hydrocarbons (compounds with carbon linked in chains). As the hydrocarbon content of oil shale increases, torbanite becomes cannel coal. Torbanite occurs abundantly in France, New South Wales, South Africa, and the northeastern United States. It was named for its occurrence on Torbane Hill, Bathgate, West Lothian

Learn more about boghead coal with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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