Rare earth oxide (IMAGE) DOE/Oak Ridge National Laboratory Caption Shown here is a rare earth oxide with the minimum required purity to remanufacture a new permanent magnet. Credit Carlos Jones/ORNL, U.S. Dept. of Energy Usage Restrictions None License Original 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.