A method for the synthesis of zeolites

A method for making a zeolite comprises continuously contacting a solution of a silicate with a precipitating reagent to effect continuous change of concentration of the silicate solution and to form an insoluble silica precipitate having a particle size of 1-500 micron. The silica precipitate is then introduced into a reaction mixture, which is maintained under conditions effective to convert said silica into the required zeolite and which contains up to 40% silica solids loading and 0 to 10 weight percent seeds of the required zeolite