History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c15.s5.1

v1.c15.s5.1

All the ceramic wares of the Bronze Age/Chalcolithic period which are red wares painted with black designs with its variants such as the Harappan, the OCP, the Kayatha-Malwa, Jorwe and the Lustrous Red ware fabrics are the products of identical technology. The red colour of the surface is due to the presence of iron compounds in clay which impart the red colour to the pottery when fired under oxidising conditions.