Minerals Leószilárdite (IMAGE) Michigan Technological University Caption The mineral crystals of leószilárdite are only a couple millimeters long at most. Credit With permission: Travis Olds Usage Restrictions ask permission from Travis Olds for use 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.