Giant magnetofossils (IMAGE) University of Utah Caption Electron microscope images of giant needles. Needles have a cylindrical shape and some taper toward one end of the crystal. Credit Courtney Wagner, Ioan Lascu and Kenneth Livi. Usage Restrictions Credit as indicated. 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.