The effects of temperature and straw ash content on the agglomeration characteristics of the silica sand-straw ash mixture were investigated using a scanning electron microscope and an energy dispersive X-ray analyser Four levels of temperature (620, 740, 850 and 1000-degrees-C) and four levels of straw ash content (0.0, 3.3, 27.8 and 43.5%) were used. The results showed that a low melting temperature eutectic was formed at elevated temperatures (850-1000-degrees-C) due to the chemical interaction between the silica (SiO2) and potassium oxide (K2O) present, in a relatively high concentration, in the straw ash.