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Gilsonite
Gilsonite (ˈɡɪlsəˌnaɪt) n (Minerals) trademark a very pure form of asphalt found in Utah and Colorado; used for making paints, varnishes, and linoleum[C19: named after S. H. Gilson of Salt Lake City, Utah, who discovered it]Gil•son•ite (ˈgɪl səˌnaɪt)
Trademark. a brilliant black bitumen with a brown streak and conchoidal fracture; uintaite. gilsonite
gilsonite[′gil·sə‚nīt] (mineralogy) A variety of asphalt; it has black color, brilliant luster, brown streaks, and conchoidal fracture. gilsonite, uintahiteA naturally occurring grade of asphalt used in floor tile, paints, paving, and roofing. |