An improved jig screen for a centrifugal jig includes a recovery zone and a stratification zone adjacent to one another. The stratification zone is constructed to prohibit outward radial passage of slurry particles while permitting fluid pulsations to be imparted to the slurry during jig screen rotation. The stratification zone axially leads to the recovery zone. The recovery zone has openings permitting passage of particles in the slurry and through which fluid pulsations are directed to the slurry during jig screen rotation. The combination of applying centrifugal force and fluid pulsations to a pre-stratified slurry more effectively separates the heavy particles passing through the recovery zone of the jig screen from the lightweight particles discharged at its exit end.