In the geometallurgical context material tracking along the processing circuits were critical. In order to optimize the grinding performance around the SABC circuit the multicomponent modelling of the comminution circuit was achieved. The results addressed that the pebble occurrence in the mill is affected by different grindabilites. There is a tendency to grind soft material therefore mostly the pebbles contain high silica content with lowered densities. This was causing inefficiency problems. In order to overcome this optimisation studies were conducted and % 10 increase in the production was achieved.