The other ball clay resources available are from Payyangadi and Rampuram under Cannanore district in Kerala. These clays are of dark colour firing characteristics due to the presence of higher content of iron and titanium impurities. The alumina content is very high, ranges up to 32% and this makes this clay more suitable for making refractory products.
The presence of sodium and potassium in higher % makes this clay in to vitrifiable type ball clay and hence the ceramic tile manufacturers can use this clay in their body formulation for better vitrification. Simple clay beneficiation techniques will improve the properties of this clay considerably.
