Ya. P. Biryukov
I.V. Grebenschikov Institute of Silicate Chemistry of the Russian Academy of Sciences (ISC RAS)
Russian Federation

Yaroslav P. Biryukov

2 Makarova emb., Saint Petersburg 199034

A. L. Zinnatullin
Kazan Federal University, Institute of Physics
Russian Federation

Almaz L. Zinnatullin

18 Kremlyovskaya st., Kazan 420008

R. S. Bubnova
I.V. Grebenschikov Institute of Silicate Chemistry of the Russian Academy of Sciences (ISC RAS)
Russian Federation

Rimma S. Bubnova

2 Makarova emb., Saint Petersburg 199034

F. G. Vagizov
Kazan Federal University, Institute of Physics
Russian Federation

Farit G. Vagizov

18 Kremlyovskaya st., Kazan 420008

A. P. Shablinskii
I.V. Grebenschikov Institute of Silicate Chemistry of the Russian Academy of Sciences (ISC RAS)
Russian Federation

Andrey P. Shablinskii

2 Makarova emb., Saint Petersburg 199034

S. K. Filatov
Saint Petersburg State University, Institute of Earth Sciences
Russian Federation

Stanislav K. Filatov

7/9 Universitetskaya emb., Saint Petersburg 199034

I. V. Pekov
Moscow State University
Russian Federation

Igor V. Pekov

Faculty of Geology

1 Leninskie Gory, Moscow 119991