Fire clay that is widely demanded for general mortar and low iron content mortar applications. Fire Clay Powder, offered by us, can with stand temperatures of 700O C to 1600o C. Fire Clay is a term applied to arrange of refractory clays used in manufacture of ceramics especially fire brick. Fire Clay is mineral aggregate composed of hydras silicate of aluminum (AL2O3.2SIO2. 2H2O) with or without free silica.