1. Vinogradov Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences
2. South Urals Federal Research Center of Mineralogy and Geoecology, Ural Branch, Russian Academy of Sciences, territory Ilmen reserve
3. Irkutsk State University of Railway Engineering
4. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
5. South Ural Federal Research Center for Mineralogy and Geoecology, Ural Branch, Russian Academy of Sciences
6. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences