Minerals and mineral parageneses

Platinum Group Minerals from Chromitites of Southeren Part of the Syum-Keu Massif (Polar Ural): New Data

А. N. Yurichev, A. I. Chernyshov, E. V. Korobovyak

Pages 3-38

Vanadium-Rich Spinels from Izrandites of the Aleksandrov Metamorphic Complex, Southern Urals

S. V. Pribavkin, E. V. Pushkarev

Pages 38-54

The First Data on the Composition of Zircon from Rare-Metal Plumasite Granites of the Shumilovsky Intrusive in Central Transbaikalia

E. V. Badanina, L. F. Syritso, E. V. Volkova, D. A. Mashkin, N. E. Shubina, E. A. Viventsova

Pages 54-79

Vitusite-(Се) from Loparite Ores and Host Rocks of the Karnasurt Deposit, Lovozero Massif, Kola Peninsula, Russia

L. M. Lyalina, E. A. Selivanova, A. A. Zolotarev jr., Ya. A. Pakhomovsky, A. A. Kompanchenko, Ju. A. Mikhailova

Pages 79-103

Composition and Formation Conditions of Volcanic Bombs from the Ksudach Volcano (Kamchatka)

N. I. Ponomareva, V. N. Bocharov, N. S. Vlasenko, N. V. Afanasieva, S. Yu. Yanson

Pages 103-114

Mineralogical cristallography

Thermal Behavior of Vladimirivanovite Na6Ca2 (Al6Si6O24)(SO4 , S3 , S2 , Cl)2 ·H2O: Crystallochemical Aspect

N. V. Potekhina, I. V. Pekov, A. A. Zolotarev jr., S. N. Britvin, V. D. Shcherbakov

Pages 114-135

Chronicles

2025 Recipients of the N. I. Koksharov Medal of the Russian Mineralogical Society

S. V. Krivovichev, I. V. Pekov

Pages 135-139

Report on the Russian Mineralogical Society Activities in 2025

S. A. Akbarpuran Haiyati, Yu. L. Gulbin

Pages 139-143