1. IN THE PROCESS OF RECOVERING MINERAL VALUES IN CONCENTRATED SLURRY FORM FROM LEACHED ZONE MATERIAL FROM THE FLORIDA PEBBLE PHOSPHATE FIELDS WHEREIN SAID ORE IS PULPED WITH WATER, THE STEPS COMPRISING SLURRYING THE LEACHED ZONE MATERIAL, ADDING TO THE SLURRY A DISPERSANT SELECTED FROM THE GROUP OF SODIUM SILICATE, SODIUM HEXAMETAPHOSPHATE AND MIXTURES THEREOF, CLASSIFYING THE DISPERSED SLURRY AND RECOVERING A MINUS 200 MESH SIZE FRACTION HAVING A SOLIDS CONTENT BETWEEN ABOUT 25% AND ABOUT .35% BY WEIGHT.