Mineral Leesite (IMAGE) Michigan Technological University Caption Uranyl minerals have distinct bright colors even after the uranium-rich ore interacts with air and water to form crusts like leesite. Credit With permission: Travis Olds Usage Restrictions credit 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.