The crystallization behavior of metakaolin (Al(2)Si(2)O(7)) at 25-100A degrees C in solutions of sodium hydroxide and sodium silicate with different concentrations was studied, and the conditions for its conversion into finely divided, high-crystallinity zeolites of types A and X were determined. On the basis of the product zeolites and kaolin, procedures were developed for the preparation of pelleted, binder-free materials as polycrystalline accretions of zeolites A and X, which do not rank below pelleted zeolites obtained from synthetic feedstock.