A Monte Carlo-simulated annealing (MC-SA) method has been used to pred
ict the location and conformation adopted by template molecules within
the bulk and on the growing surface of the zeolite products they form
. This approach has been used to give a unique insight into several im
portant aspects of zeolite synthesis, including structure-blocking eff
ects. New approaches for novel synthesis work and computational strate
gies are identified.