Our company is currently capable of producing three types of Gilsonite in different sizes according to the customer request. 1- Gilsonite micronized powder with a diameter of 80 to 400 mesh and ashes (between zero and 25 percent). 2- Gilsonite lump with ash percentage between Zero and 25. 3- Granulated Gilsonite with a diameter of 30 to 40 meshes.