Gilsonite is a glossy, black, solid hydrocarbon resin similar in appearance to coal or hard asphalt. It is brittle and lightweight and can be easily crushed into powder. Its unique chemical properties identify it as belonging to its own sub-group of the asphaltite family. Gilsonite occurs naturally in a very pure state, and softens in a range of temperatures according to grade, from 300 to 400 degrees Fahrenheit (150-205 degrees Celsius). It has low specific gravity, high nitrogen content and very lower sulfur content. It is non-carcinogenic and safe to handle in its natural state.