Cooper's media include oils, watercolors, charcoals, pencil, and bronze sculpture, as well as lithographs. Morisot actively experimented with charcoals and color pencils. The live charcoals were placed underneath the clay pots. The banana is peeled, skewered and then grilled over charcoals. Burnt charcoals have been found in these fire-pits. The major catalytical use of charcoals and carbon blacks is to support metals. In addition, charcoals are sometimes used to support compounds such as sulfides and halides. Pied, albino, and charcoals are becoming more common. The charcoals would be put on the Khansar without foil. After three months of hard work, he successfully delivered 40 tons of charcoals to Yan'an. Charcoals were not found in association with the bones.