Geology of Ore Deposits, 2025, V 67, N 7, December.

The Protomineral World As a New World of Neglected Dimensions
A. M. Askhabov 
p. 925  

Rock-Forming Sodalite–Sapozhnikovite Series Feldspathoids 
from the Lovozero Alkaline Complex (Kola Peninsula, Russia): 
Isomorphism, Thermal and Radiation-Induced 
Transformations, and Genetic Mineralogy
I. V. Pekov, N. V. Chukanov, V. D. Shcherbakov, 
M. F. Vigasina, R. Yu. Shendrik, F. D. Sandalov, 
S. V. Vyatkin, and A. G. Turchkova 
p. 930  

Marble-Hosted Noble Spinel Deposits from the Luc Yen District 
(Vietnam): Mineral Equilibria Involving Corundum and Spinel
V. G. Krivovichev, K. A. Kuksa, P. B. Sokolov, 
and S. E. Gutyryak 
p. 954  

Platinum-Bearing Fe–Mn Oceanic Crust on Basalts: 
Mineralogy and Model of Formation
N. S. Rudashevsky, V. N. Rudashevsky, 
and O. V. Alikin 
p. 963  

Fluid Inclusions in Quartz of Gold-Ore Occurrences 
and Gold-Quartz Intergrowths from Placers of 
the Sololi Uplift of the Olenyok Arch
V. N. Kardashevskaia, B. B. Gerasimov, A. A. Tomilenko, 
and V. N. Bocharov 
p. 979  

NEW MINERALS

Ikorskyite KMn3+(Si4O10)⋅3H2O, a New Mineral from the 
Khibiny Alkaline Massif (Kola Peninsula)
V. N. Yakovenchuk, T. L. Panikorovskii, 
N. G. Konoplyova, Y. A. Pakhomovsky, E. E. Savchenko, 
J. A. Mikhailova, V. N. Bocharov, D. V. Spiridonova, 
and S. V. Krivovichev 
p. 988  

MINERALS AND MINERAL PARAGENESES

First Findings of the Platinum-Group Minerals from 
Ultramafites of the Idzhim Mafic-Ultramafic 
Massif (Western Sayan)
A. N. Yurichev, A. I. Chernyshov, and 
E. V. Korbovyak 
p. 996  

Jacobsite as an Indicator of Manganese Ore 
Genesis in the Ushkatyn-III Deposit (Central Kazakhstan)
A. I. Brusnitsyn, D. A. Vladimirova, E. N. Perova, 
O. S. Vereshchagin, and I. G. Zhukov 
p. 1014  

Barium-Bearing Micas of the Muscovite–Ganterite 
Series from Alkaline Rocks of the Sredneziminsky 
Ijolite-Syenite-Carbonatite Massif (Eastern Siberia, Russia)
V. B. Savelyeva, B. S. Danilov, E. P. Bazarova, 
E. A. Khromova, and Yu. V. Danilova 
p. 1028  

Variations in Chemical Compositions of Titanite 
Group Minerals from Ore Skarns in the Ladoga 
Lake Region (South Karelia, Russia)
V. I. Ivashchenko 
p. 1042