Definitions for "GILSONITE"
An asphaltite, one of the purest natural bitumens. The specific gravity is 1.05 to 1.10. It is used in japan and other varnishes and for waterproofing.
A pure asphalt found mainly in Utah.
Trademark name for uintaite (or uintahite), a black, brilliantly lustrous natural variety of asphalt found in parts of Utah and western Colorado.