Sustainable Processing (IMAGE) Helmholtz-Zentrum Dresden-Rossendorf Caption Separating non-valuable rock from the ore at the earliest possible stage minimizes costs and rubble in further processing of raw materials. Credit TUBAF/Detlev Müller Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.