After sedimentation and decantation we were able to increase the crystallinity from 60 to 70 % in the sample. Further treatment by sonication and magnetic separation was tried in an attempt to remove Fe species present in the sample. The ICP results confirmed the clay is mainly composed of kaolinite and minor quartz and other impurities including Fe (Table 1). After purification, a notable reduction in the Fe content along with the Si content can be observed, due to the elimination of certain amount of quartz, leading to a Si/Al ratio closer to 1, which is required to the crystallization of zeolites A.