Fluorescent Banding (IMAGE) Proceedings of the National Academy of Sciences Caption Fluorescent banding in a Soreq Cave (Israel) stalagmite examined for this study; the microscope image is less than a millimeter across and tiny analysis pits are visible in the upper-left. Credit Ian J. Orland Usage Restrictions None 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.