1. Institut für Mineralogie Westfälische Wilhelms‐Universität Corrensstr. 24 48149 Münster Germany
2. Particle Chemistry Department Max Planck Institute for Chemistry Hahn‐Meitner‐Weg 1 55128 Mainz Germany
3. SuperSTEM Laboratory Keckwick Lane Daresbury UK
4. Department of Physics Jeol Nanocentre University of York Heslington YO10 5DD UK
5. School of Chemical and Process Engineering School of Physics University of Leeds Leeds LS2 9JT UK
6. Institut für Geochemie und Petrologie ETH Zürich Clausiusstr. 25 Zürich Switzerland