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MGT Mineral Company as a major producer, supplier and exporter of several minerals and materials in the Middle East, is located in Iran. MGT Mineral Company has a lot of experience in exporting and is active in case of Gilsonite supplying.

Gilsonite, a naturally occurring solid hydrocarbon of the asphaltite group, is found in commercial quantities in the Uinta Basin of northeastern Utah, in Uintah and Duchesne counties. Gilsonite occurs in a subparallel set of straight, linearly continuous, vertical veins in a northwest-southeast trending zone approximately 100 km long by 50 km wide (Figure 1). The veins are an integral part of the hydrocarbon-rich Uinta Basin, which also contains oil shale, coal, tar sand, and other solid hydrocarbons, including wurtzilite, tabbyite, and ozokerite.


Iran Gilsonite, Gilsonite

Iran has many Gilsonite resources and is one of the best Gilsonite suppliers in The Middle East. MGT Mineral Company has a great ability to make all necessary trading relationship with most of Gilsonite supplier.

Gilsonite producer, Iran Gilsonite producer, Iran Gilsonite


Physical Properties of Gilsonite

Softening Point


Moisture Content

0.5 %




1.04-1.06 g/cm3

Ash Content

0.5 %

Hardness (Mohs)




Gilsonite Occurrence

Gilsonite occurs in disseminated blebs and in dikes (veins), sills, and fracture fillings, often in association with oil shale or bituminous deposits (tar sands). Gilsonite has a dull, black, coal-like appearance on weathered surfaces and a shiny, black, obsidian-like appearance on a fresh, conchoidal to hackly fracture surface.

A small amount of Gilsonite in deep parts of some veins is in a semisolid state or in the form of a liquid ooze. Gilsonite solidifies with increased oxidation of its organic compounds and loss of hydrogen. Industry at one time defined three major subdivisions of Gilsonite based on appearance and fusing temperature: selects, seconds, and jet. Selects material is very shiny, fuses from 149°C to 168°C, and tends to occur in centers of veins. Seconds are somewhat duller than selects, fuse from 152°C to 183°C, and tend to occur along vein margins, sometimes with a columnarjointed, “pencillated” texture. Pencillated texture forms at right angles to vein walls and penetrates about 15 cm into the ore. Gilsonite also has flaky or scaly texture in some localities. A third, unusual variety called jet Gilsonite has a brilliantly shiny surface, is bluish black, and fuses from 199°C to 230°C (Abraham 1960). It was found only in the Cowboy vein. Gilsonite is now classified by fusing temperature into five ranges, which are used in different applications and sell for different prices. Gilsonite from different veins or different parts of veins is sometimes mixed to achieve a product with a specific fusing temperature range.

Gilsonite was named after Samuel H. Gilson. He was not one of the original discoverers of Gilsonite, but became linked to the material through his enthusiastic search for its uses and markets, and local people began referring to the material as Gilsonite rather than by its scientific name, uintahite. The name Gilsonite was further solidified in common usage when a mining company adopted and trademarked the name.


Gilsonite Usages

Gilsonite has an extremely wide range of uses; these uses have changed over time with new technology and industrial needs.

  1. Asphalt paving mixes and coatings: Gilsonite added to asphalt paving mixes (black top) improves pavement performance. Gilsonite can also be incorporated into solvent-based and emulsion-type pavement sealers.
  2. Chemical products: Gilsonite is used in metallurgy, in adhesives and coatings, as a binder in refractories, and as a binder in brake pads.
  3. Metal foundry uses: Gilsonite is used as an additive in molding sand mixes in Iron and steel casting.
  4. Inks and paints: Gilsonite, added to ink and paint formulations, can save money and improve product properties. 
  5. Oil well drilling and well completions: Gilsonite has long been used to improve characteristics of water-based, oil-based, and synthetic-based drilling mud systems.


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