Crystal chemistry and structural complexity of the uranyl carbonate minerals and synthetic compounds

0543542 - FZÚ 2022 RIV CH eng J - Journal Article
Gurzhiy, V.V. - Kalashnikova, S.A. - Kuporev, I.V. - Plášil, Jakub
Crystal chemistry and structural complexity of the uranyl carbonate minerals and synthetic compounds.
Crystals. Roč. 11, č. 6 (2021), č. článku 704. ISSN 2073-4352. E-ISSN 2073-4352
R&D Projects: GA ČR(CZ) GA20-11949S
Institutional support: RVO:68378271
Keywords : uranyl * carbonate * mineral * crystal structure * topology * structural complexity
OECD category: Mineralogy
Impact factor: 2.670, year: 2021
Method of publishing: Open access

Uranyl carbonates are one of the largest groups of secondary uranium(VI)-bearing natural phases being represented by 40 minerals approved by the International Mineralogical Association, overtaken only by uranyl phosphates and uranyl sulfates. Uranyl carbonate phases form during the direct alteration of primary U ores on contact with groundwaters enriched by CO2, thus playing an important role in the release of U to the environment. It is of interest that with all the importance and prevalence of these phases, about a quarter of approved minerals still have undetermined crystal structures, and the number of synthetic phases for which the structures were determined is significantly inferior to structurally characterized natural uranyl carbonates. In this work, we review the crystal chemistry of natural and synthetic uranyl carbonate phases.

Permanent Link: http://hdl.handle.net/11104/0320740