Clays are used as raw material in many industrial fields such as structural ceramics, paper, paint, petroleum industry, whiteware and sanitaryware. Their applications are tightly dependent upon their structure, composition, and physical attributes. The knowledge of these characteristics can help in the best exploitation and eventually may open-up new areas of application. Each ceramic product requires clays having particular and appropriate characteristic.The Ukrainian clay has emerged as an essential component of porcelainized stoneware tile body formulations. In the state of Gujarat, Rajasthan (India), a number of units manufactures porcelainized stoneware floor tiles utilizing Ukrainian clay. The local entrepreneurs explored clay deposits with their own talent without any systematic Geological Survey.The sorted and screened clay was very cheap and of inferior quality comparable to the imported clays.This book focus on up-gradation & value-addition of clays by blending the different type of clays in certain ratio based upon their particle size distribution and their physical properties.