Gilsonite, also known as uintaite or asphaltum, is a naturally occurring solid hydrocarbon resin. It is formed from the partial decomposition of organic matter over millions of years. The composition of Gilsonite can vary slightly depending on its source, but it primarily consists of the following components:


Gilsonite is composed mainly of carbon, typically ranging from 80% to 90% by weight. The carbon content gives Gilsonite its black color and contributes to its combustible nature.


Hydrogen is another essential component of Gilsonite, typically comprising around 4% to 6% by weight. Hydrogen atoms are bonded to the carbon atoms in the hydrocarbon structure of Gilsonite.


Oxygen is present in small amounts in Gilsonite, usually between 1% and 3% by weight. It is primarily present as oxygen atoms in functional groups within the hydrocarbon structure.


Nitrogen is found in trace amounts in Gilsonite, typically less than 1% by weight. It is also present in the form of functional groups within the hydrocarbon structure.


Sulfur is present in variable amounts in Gilsonite, ranging from trace levels to around 8% by weight. The sulfur content contributes to the unique chemical properties of Gilsonite.


Gilsonite may contain some inorganic mineral matter, known as ash. The ash content is typically less than 10% by weight and can vary depending on the specific source of Gilsonite.

It’s important to note that the composition of Gilsonite can vary depending on its geological origin, extraction location, and processing methods. Therefore, the specific composition of Gilsonite may vary slightly from one source to another.