Crystal chemical indicators of oxo-centered tetrahedra establishment in divalent lead minerals.
https://doi.org/10.55959/MSU0579-9406-4-2024-63-1-3-12
Abstract
A complex crystal-chemical analysis of 1567 oxygen positions in 216 crystal structures of lead- containing minerals belonging to the classes of silicates, phosphates, oxides, oxohalides, and a number of others has been carried out. It was shown that the combined application of the bond valence method and the analysis of the geometric characteristics of Voronoi-Dirichlet polyhedra make it possible to confidently distinguish between oxygen positions related to cation structure blocks and oxygen positions for which a description based on an anion-centered approach is more justified. Numerical indicators for such a separation of oxygen positions are substantiated, which can be used to analyze large arrays of structural data using the machine learning approaches.
About the Authors
A. D. Podobrazhnykh
Lomonosov Moscow State University
Russian Federation
Russian Federation
Andrey D. Podobrazhnykh
Moscow
T. A. Eremina
Lomonosov Moscow State University
Russian Federation
Russian Federation
Tatyana A. Eremina
Moscow
E. I. Marchenko
Lomonosov Moscow State University
Russian Federation
Russian Federation
Ekaterina I. Marchenko
Moscow
N. N. Eremin
Lomonosov Moscow State University
Russian Federation
Russian Federation
Nikolay N. Eremin
Moscow
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Review
For citations:
Podobrazhnykh A.D., Eremina T.A., Marchenko E.I., Eremin N.N. Crystal chemical indicators of oxo-centered tetrahedra establishment in divalent lead minerals. Moscow University Bulletin. Series 4. Geology. 2024;1(1):3-12. (In Russ.) https://doi.org/10.55959/MSU0579-9406-4-2024-63-1-3-12
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