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).]

uintaite

(jʊˈɪntəˌaɪt)
n
(Minerals) a black asphalt found in the Uintah basin, used in the manufacture of inks, paints, and other chemical products

Gil•son•ite

(ˈgɪl səˌnaɪt)
Trademark.
a brilliant black bitumen with a brown streak and conchoidal fracture; uintaite.