1. Faculty of Geology, Moscow State University, 119991 Moscow, Russia
2. Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics”, The Russian Academy of Sciences, 119333 Moscow, Russia
3. Faculty of Chemistry, Moscow State University, 119991 Moscow, Russia
4. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
5. Institute of Physics, University of Tartu, 50411 Tartu, Estonia
6. Melnikov Research Institute of Comprehensive Exploitation of Mineral Resources, The Russian Academy of Sciences, 111020 Moscow, Russia