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Many minerals that form at surface temperatures are marked by small particle size and poor crystallinity. They are inherently difficult to investigate by the standard crystallographic techniques but the knowledge of their structures is necessary, if we aspire to understand metal cycling in the environment. In our newest work, we investigated the mineral znucalite, a zinc-uranium carbonate, with a complex formula Zn12Ca(UO2)(CO3)3(OH)22·4H2O. We were able to determine its complicated crystal structure, using precession electron diffraction, and its thermodynamic properties, based on the chemical composition of the solutions associated with this mineral in the field. For more information, see https://doi.org/10.2138/am-2023-8956Externer Link
