Ivory study image 4 (IMAGE) University of Bristol Caption An ivory object, assumed to be of Asian elephant origin, under the microscope inside a Renishaw in via Raman microspectrometer Credit Dr Rebecca Shepherd Usage Restrictions The image must only be used to illustrate this study and must not be used for commercial purposes 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.