Geology of Ore Deposits, 2024, V 66, N 8, December.

Basalt Alteration in High-Temperature Oxidizing-Type Fumaroles
at the Tolbachik Volcano (Kamchatka, Russia). Part 1: 
Processes and Products of Olivine Alteration
M. O. Bulakh, I. V. Pekov, N. N. Koshlyakova, 
and M. A. Nazarova 
p. 1057  

Basalt Alteration in High-Temperature Oxidizing-Type 
Fumaroles at the Tolbachik Volcano (Kamchatka, Russia).
Part 2: Gas Metasomatites
M. O. Bulakh, I. V. Pekov, N. N. Koshlyakova, 
and M. A. Nazarova 
p. 1083  

Thermodynamics of Arsenates, Selenites, and Sulphates 
in the Oxidation Zone of Sulfide Ores. XVI. 
Solubility of the Synthetic Analogue of Mandarinoite at 25°C
M. V. Charykova, K. L. Ushakova, A. Holzheid, 
V. G. Krivovichev, N. M. Efimenko, and 
N. V. Platonova 
p. 1123  

MINERALS AND MINERAL PARAGENESES

Neotocite from Manganese Ores of the 
Ushkatyn-III Deposit, Central Kazakhstan
A. I. Brusnitsyn, and G. S. Egorov 
p. 1133  

Hematite from Fumaroles of the Tolbachik Volcano 
(Kamchatka, Russia): Chemistry, Relationships 
with Associated Minerals, Morphological and Genetic Features
F. D. Sandalov, I. V. Pekov, N. N. Koshlyakova, 
A. V. Latyshev, and P. S. Zhegunov 
p. 1145  

Crandallite and Florencite-(Ce) from a Quartz Vein 
of the Area of the Zhelannoe Deposit, Subpolar Urals
S. A. Repina 
p. 1167  

Minerals of the Alunite Supergroup in the Bedded 
Massive Sulfide Ores of the Yaman-Kasy Deposit, 
South Urals: Morphology, Assemblages, 
and Chemical Composition
N. P. Safina, V. A. Kotlyarov, and I. A. Blinov 
p. 1177  

MINERALOGICAL CRYSTALLOGRAPHY

Structural Transformations of Minerals in the 
Earth’s Mantle: the New High Pressure Polymorphous 
Modifications of Olivine and Wollastonite
D. Yu. Pushcharovsky 
p. 1188  

Density Functional Theory Simulation of 
the Hydrogen Bonding System in Sampleite
T. L. Panikorovskii, V. N. Yakovenchuk, 
Y. A. Pakhomovsky, N. G. Konoplyova, G. Yu. Ivanyuk, 
A. A. Antonov, V. V. Shilovskikh, and 
S. V. Krivovichev 
p. 1201