BkO2 and Cf2O STEM (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Top: (left) Droplet of solution containing californium on a transmission electron microscopy grid; (right) scanning transmission electron microscopy (STEM) image of individual californium nanoparticles. Bottom: (left) STEM images of crystal structures of (left) Cf2O3 - blue schematic outlines californium columns; and (right) BkO2 - blue schematic illustrates berkelium lattice. Credit Andy Minor and Rebecca Abergel/Berkeley Lab 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.