1. Institute of Biophysics of the Czech Academy of Sciences Královopolská 135 61200 Brno Czech Republic E-mails
2. Institute of Rock Structure and Mechanics of the CAS V Holešovičkách 41 18000 Prague Czech Republic
3. University of Chemistry and Technology Prague Technická 5 16628 Prague Czech Republic
4. TESCAN Brno, s.r.o. Libušina třída 1 62300 Brno Czech Republic
5. Department of Geological Sciences Faculty of Science Masaryk University Kotlářská 2 61137 Brno Czech Republic
6. Physics Department NanoSystems Initiative Munich and Center for Nanoscience Ludwig-Maximilians-University of Munich Amalienstrasse 54 80799 München Germany
7. Earth and Environmental Sciences Ludwig-Maximilians-University of Munich Theresienstrasse 41 80333 München Germany
8. Research Centre for Astronomy and Earth Sciences (CSFK), MTA Centre of Excellence, Konkoly Thege Miklós út 15-17 H-1121 Budapest Hungary
9. Department of Petrology and Geochemistry Institute of Geography and Earth Sciences Eötvös Loránd University Pázmány Péter sétány 1/C H-1117 Budapest Hungary
10. Department of Geological Sciences University of Colorado UCB 399 Boulder Colorado 80309-0399 USA