During 1969-72, kaolinised bedrock south of Kimba on northern Eyre Peninsula was investigated by Pechiney and CSR Ltd as a potential source of alumina. Exploration drilling of 102 holes outlined 4 broad areas of kaolinisation at Kelly Tank, Bunora-Balumbah, Campoona Hill and Chinmina Creek. Acid soluble alumina content of the kaolin was between 20-30%, but at these grades the process of alumina extraction was deemed uneconomic. Kaolin from the areas with the largest inferred resources, at Kelly Tank and Bunora- Balumbah, was investigated subsequently as a raw material for coating paper and for refractory and ceramic manufacture. Kaolin quality was variable and below tha t required for high-grade kaolin markets.