Gilsonite is black and natural rock asphalt that can be pulverized and melted to use in the ink, drilling fluid, asphalt and foundry industry. Gilsonite chemical makeup is a complex mix of elements that include sulfur, carbon, oxygen, hydrogen and nitrogen, as well as small quantities of other elements.
date_rangeDec 29' 2018 / India
date_rangeAug 08' 2018 / Iran
date_rangeAug 08' 2018 / Iran
date_rangeAug 07' 2018 / Iran