uintaite
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u·in·ta·ite
(yo͞o-ĭn′tə-īt′)n.
A natural black bitumen used in the manufacture of acid, alkali, and waterproof coatings.
[After the Uinta (Mountains).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
uintaite
(jʊˈɪntəˌaɪt)n
(Minerals) a black asphalt found in the Uintah basin, used in the manufacture of inks, paints, and other chemical products
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Gil•son•ite
(ˈgɪl səˌnaɪt)Trademark.
a brilliant black bitumen with a brown streak and conchoidal fracture; uintaite.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.