Basalt Sample (IMAGE) Deutsches Elektronen-Synchrotron DESY Caption This shows thin slices of basalt with a diameter of just a fraction of a millimeter were subjected to high pressure in a diamond anvil cell. This sample has been molten and subsequently probed with X-rays three times. Credit Chrystèle Sanloup, University of Edinburgh Usage Restrictions Free to use for the media only when reporting on the related paper. Credit must be given. 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.