1. Institute of Geosciences, Friedrich-Schiller-University Jena, 07745 Jena, Germany
2. Department of Economic Geology, Comenius University in Bratislava, 842 15 Bratislava,
Slovakia
3. Institute of Synchrotron
Radiation, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen,
Germany