Deep-Earth Origin (IMAGE) Columbia Climate School Caption Geochemist Yakov Weiss examines a magnified image of a rough diamond. The chemical compositions of tiny fluid droplets within diamonds match those of lavas that form some volcanic islands. Credit Kevin Krajick/Lamont-Doherty Earth Observatory Usage Restrictions 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.