The rotary scrubber is an autogenous rotating drum scrubber, utilizing pebbles and rocks within the feed source to fracture and disintegrate clays, agglomerates and soft oxides. The scrubber spins slowly, similar to a giant washing machine. It churns the fines and oversize and water together, vigorously breaking up the soil matrix as well as liberating the target mineral from tough clay, schistand rock. Disintegrated material is homogeneously slurried within the drum, whilst the autogenously load is retained within the drum by reverse flights located at the drum discharge end. Slurry and washed oversize overflows the drum discharge throat to the concentric exit trommels. This material is then passed on to the downstream process equipment in pioneers machinery which can be in various forms such as centrifugal concentrator, spiral chute, rougher jig etc.