1. Department of Crystallography
2. Institute of Earth Sciences
3. St Petersburg State University
4. 199034 St Petersburg
5. Russia
6. Deutsches Elektronen-Synchrotron (DESY)
7. Petra III
8. 22607 Hamburg
9. Germany
10. Materials Physics and Technology at Extreme Conditions
11. Laboratory of Crystallography
12. University of Bayreuth
13. 95440 Bayreuth
14. Bayerisches Geoinstitut
15. 95447 Bayreuth