1. Max Planck Institute for Chemistry Particle Chemistry Department Hahn‐Meitner‐Weg 1 55128 Mainz Germany
2. Institute for Planetology University of Münster 48149 Münster Germany
3. Institute for Mineralogy University of Münster 48149 Münster Germany
4. Laboratory for Space Sciences Physics Department and McDonnell Center for Space Sciences Washington University in St. Louis One Brookings Drive St. Louis Missouri 63130 USA
5. Institute of Geoscience Friedrich Schiller University Jena Carl‐Zeiss‐Promenade 10 07745 Jena Germany