boghead coal

[bog-hed]

boghead coal

[bog-hed]
noun
compact bituminous coal that burns brightly and yields large quantities of tar and oil upon distillation.

Origin:
1935–40; named after Boghead, Scotland
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Boghead coal is always a great word to know.
So is ninnyhammer. Does it mean:
a fool or simpleton; ninny.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Encyclopedia Britannica
Encyclopedia

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

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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