Diamond Anvil (IMAGE) University of Tokyo Caption The diamond anvil used to compress an iron sample. Credit © 2020 Kuwayama et al. Usage Restrictions © 2020 Kuwayama et al. 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.