English: Traditional form of Sri Lankan pottery made from "Kirimeti" (kaolin) and "Gurugal"/Guru stone (ferruginous nodules). This traditional style of pottery is an old decorative art form for domestic utility ware in Sri Lanka. The water based red slip, used to create incised decorative red-ware is made by grinding certain ferruginous nodules (gurugal) or concretions and applying on the red and white clay base. The red slip is thereafter applied to the leather hard clay vessel and the decorations are then incised through the red slip to expose the white clay beneath. ^[1]