Crystal chemistry of KCuMn3(VO4)3 in the context of detailed systematics of the alluaudite family
- Authors: Yakubovich O.V.1,2, Kiryukhina G.V.1, Dimitrova O.V.1
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Affiliations:
- Faculty of Geology
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Biochemistry
- Issue: Vol 61, No 4 (2016)
- Pages: 566-575
- Section: Structure of Inorganic Compounds
- URL: https://journals.rcsi.science/1063-7745/article/view/190121
- DOI: https://doi.org/10.1134/S1063774516040246
- ID: 190121
Cite item
Abstract
The crystal structure of new manganese potassium copper vanadate KCuMn3(VO4)3, which was prepared by the hydrothermal synthesis in the K2CO3–CuO–MnCl2–V2O5–H2O system, was studied by X-ray diffraction (R = 0.0355): a = 12.396(1) Å, b = 12.944(1) Å, c = 6.9786(5) Å, β = 112.723(1)°, sp. gr. C2/c, Z = 4, ρcalc = 3.938 g/cm3. A comparative analysis of the crystal-chemical features of the new representative of the alluaudite family and related structures of minerals and synthetic phosphates, arsenates, and vanadates of the general formula A(1)A(1)′A(1)″A(2)A(2)′M(1)M(2)2(TO4)3 (where A are sites in the channels of the framework composed of MО6 octahedra and TО4 tetrahedra) was performed. A classification of these structures into subgroups according to the occupancy of A sites is suggested.
About the authors
O. V. Yakubovich
Faculty of Geology; Institute of Geology of Ore Deposits, Petrography, Mineralogy and Biochemistry
Author for correspondence.
Email: yakubol@geol.msu.ru
Russian Federation, Moscow, 119992; Staromonetnyi per. 35, Moscow, 119017
G. V. Kiryukhina
Faculty of Geology
Email: yakubol@geol.msu.ru
Russian Federation, Moscow, 119992
O. V. Dimitrova
Faculty of Geology
Email: yakubol@geol.msu.ru
Russian Federation, Moscow, 119992