Vol. 70, No. 2, 2025

Crystallography Reports

Editorial

100th Anniversary of the Department of Crystallography of St. Petersburg State University: Pages of History

S. V. Krivovichev p. 160 abstract

Progress in the Crystal Chemistry of New Fumarolic Minerals Discovered in the 2014–2024 and Their Synthetic Analogues

O. I. Siidra, E. V. Nazarchuk, A. S. Borisov, V. A. Ginga, and D. O. Nekrasova p. 178 abstract

Natural Anhydrous Sulfates with Alkali Cations: Structural Features, Comparative Crystal Chemistry, and Genetic Mineralogy

N. V. Zubkova, I. V. Pekov, N. V. Potekhina, and D. Yu. Pushcharovsky p. 215 abstract

Results of 25-Year Studies of Uranium Compounds at the Department of Crystallography of St. Petersburg State University

V. V. Gurzhiy, E. V. Nazarchuk, Y. G. Tagirova, and S. V. Krivovichev p. 235 abstract

Crystal Chemistry of Silver Borates with Salt Inclusion Structure

S. N. Volkov, D. O. Charkin, S. M. Aksenov, A. M. Banaru, Yu. O. Kopylova, and R. S. Bubnova p. 271 abstract

Thermal Expansion of Oxygen Compounds Based on Triangular, Tetrahedral, or Mixed Anionic Groups

R. S. Bubnova, M. G. Krzhizhanovskaya, and S. K. Filatov p. 288 abstract

Thermal Evolution of Phosphates and Sulfates with Antiperovskite Structure Type (The Thermal Expansion Features and Phase Transitions)

M. S. Avdontceva, A. A. Zolotarev, M. G. Krzhizhanovskaya, and S. V. Krivovichev p. 313 abstract

Hydrotalcite-Group Minerals: Crystal Chemistry and a New Look at “Old” Minerals

E. S. Zhitova, S. V. Krivovichev, I. V. Pekov, and A. A. Zolotarev p. 325 abstract

On Geometrical Features of Packing of Molecular Crystals of Cubic, Hexagonal, and Trigonal Syngonies

N. V. Somov, A. Yu. Egorova, and E. V. Chuprunov p. 336 abstract