Ceramic whitewares practically signify vitreous or glassy elements which are usually formed from a mixture of China Clay, ball clay, quartz and feldspar milled to their possible finest particles and fired to form a ceramic compound. Ceramic whitewares are generally associated with some tremendous technical properties which make them applicable in nearly all fields of life. These admirable properties are usually a function of the China Clay present in the composition which varies respectively with their geological deposits, and furthermore affects the mechanical and physical properties of the composed whiteware. This research is therefore aimed at studying the variation of China Clay deposits and their effect in technical properties of ceramic whiteware compositions, for the production of ceramic whitewares. This was carried out by substituting China Clay of different deposits in a standard whiteware composition which was later fired at different temperatures of 1050oC, 1150oC, 1200oC and 1250oC respectively with a soaking time of 1 hour.