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Geology/Gilsonite Processing


Dr D S Subrahmanyam

Dr Trista Robichaud guid us to ask you as an expert who could help us.

We have a Gilsonite mine and selling raw Gilsonite.As you konw Gilsonite,
or North American Asphaltum is a natural, resinous hydrocarbon.
Indeed, We are going to processing raw Gilsonite and product pure Gilsonite and
related products. We are going to access to knowledge that enable us to excise the
hydrocarbon from Gilsonite.
So we need information and technology to reduce Gilsonite's ash to produce pur Gilsonite
in order to produce related product.
In other side, we are looking for some company as vendor or partner.
We would appreciated you if you kindly help and guide us to solve problem.

Do you know somebody interesting for partnership? Or are you interesting to help us
as a consular (consultation service)?

We are looking forward to hear from you kindly. We apologize for weak English (we read and
translate English excellent, but our writing is weak).

Your Sincerely

Jam Kama
Production Manager

Dear Jam Kama, Goodmorning and Fraternal Greetings!

I am very happy to receive your question. I can answer some of your queries as far as the Geology is concerned and also regarding the reduction in ash content in Gilsonite, but regarding its trade, I know little bit , however I have collected some data for your reference.

Gilsonite or Asphaltum , Natural Asphalt is similar to a hard petroleum Asphalt and is often called a natural Asphalt, Asphaltite, uintaite, or Asphaltum. Gilsonite is soluble in aromatic and aliphatic solvents, as well as petroleum Asphalt. Due to its unique compatibility, Gilsonite is frequently used to harden softer petroleum products. Gilsonite in mass is a shiny, black substance similar in appearance to the mineral obsidian. It is brittle and can be easily crushed into a dark brown powder. Gilsonite is found below the earth's surface in vertical veins or seams that are generally between two and six feet in width. The veins are nearly parallel to each other and are oriented in a northwest to southeast direction. The vein will show up on the surface as a thin outcropping and gradually widen as it goes deeper. Due to the narrow mining face, Gilsonite is mined today, much like it was 50 or 100 years ago, the primary difference is that modern miners use pneumatic chipping hammers and mechanical hoists.
AGC had developed a unique hydraulic mining system, using high pressure water to cut gilsonite at the working face and to transport a slurry of ore in flumes to a shaft pumping station, where the pulp was pumped to the surface. On the surface, the slurry was pumped 72 miles through a 6-inchdiameter pipeline over some of the ruggedest terrain in the west to a refinery at Fruita, Colorado. AGC designed and build the refinery in 1957 and operated it until 1973. During the 16 years that AGC operated the refinery, it produced gasoline, fuel oils, and coke from gilsonite. At one point, the company produced gasoline by combining gilsonite and crude oil or gilsonite and coal. It later produced gasoline from coal alone. Industrial customers now specify a dry product, so the company developed its present mining system and built the new processing plant to meet this specification.
In the recent years, due to the significant technological progress, extraction and mining of Gilsonite (natural bitumen) have been done from the mines in Gilangharb in Kermanshah province. In addition, Sormak Mining Co. has done so many experiments on recovery of Gilsonite and run a pilot factory of Gilsonite recovery which is totally new in Asia to reduce the ash content of Gilsonite to very small amounts competitive with American Gilsonite. Sormak Mining Co. has been invented a kind of asphalt and also anti-corrosion material used in waste water pipes, gas pipes and some kind of mastic, enamel and primer with the base of Gilsonite, this rare and precious material.

For more information regarding selling and buying the Gilsonite in India you can contact COMMODITY TRADING CORPORATIONOperational Address:9H / 2, Rajpur Road, Civil Lines, Delhi, India Website:
Mr. Rajeev Pabreja,91-129-4126001,9810128780,91-129-4126126
Bhagwan Niwas, 161, Ashoka Enclave 1, Sector 34
Haryana 121003

For trade in India you can also contact;

with regards
yours sincerely  


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Dr D S Subrahmanyam


All questions related to Geology, Geotechnical Engineering (especially in-situ stress, in-situ Deformability and Shear investigations) required for underground tunnels and excavations, Dimensional Stone Mining. Can't answer Soil dynamics related to Geotechnical Engineering


Geology and Geotechnical Engineering and Dimensional Stone Mining

National Institute of Rock Mechanics (Govt of India)

International Journal of Mining Engineering and some other Indian journals

Doctorate in Geology

Awards and Honors
Reviewer for 3 International Journals

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