Almost all the clay based industries, source this mineral from multiple mines. The characteristics of this clay from each mine varies highly from one another. Since using single clay does not provide the typical required characteristics, that are necessary for making ceramic product, the manufacturers use a mixture of clays sourced from different mines. The mines are spread over across India and bringing them from long distance adds lot of freight cost elements to the clay cost. In most of the cases the clay cost is very low and the freight cost is many fold of the clay cost.
