Illustration of Transitions (IMAGE) Hokkaido University Caption Viscous oil made from gold and isocyanide crystalizes in response to stimuli either into a chiral crystal or achiral crystal. A chiral crystal turns to an achiral crystal when ground. Phase transitions cause color changes. Credit Jin M. et al., <i>Journal of the American Chemical Society</i>, May 23, 2017 Usage Restrictions This image is copyrighted and can be used for reporting this press release if properly credited. 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.