Testing of Ore Comminution Behavior in the Geometallurgical - MDPIMay 19, 2015 . Keywords: geometallurgy; comminution behavior; metallurgical testing. 1. . Furthermore the type of mechanical stress applied in a certain crusher or mill type, i.e., compressive or impact stress, as .. In case the specimen is not further supported, the test is referred to as the unconfined compressive strength.metallurgical test plan crushers,Basics in Minerals Processing Handbook - Minerals in operation. Operation stages. :1. Operation – dry or wet? 2:1. Mining and quarry fronts. 2:2. Natural fronts. 2:2. Size reduction. 2:4. Size control. 2:5. Enrichment – washing. 2:5. Enrichment – separation. 2:6. Upgrading. 2:6. Materials handling. 2:7. Wear in operation. 2:8. Operation and environment. 2:9. Operation.