The study of ion-mineral interactions is a fascinating topic which spans many disciplines from inorganic chemistry to geology and ancient history. The driving forces behind the interaction of an ion and a mineral are complex, and whether or not an ion becomes incorporated into the solid phase is determined by many factors.
This Hot paper by Kiel Holliday et al. looks at the coordination of Eu and Cm to investigate what role local symmetry, ligand strength and a range of other parameters have in solid solution formation in both Eu- and Cm-doped strontianite and celestite.
So what is solid solution formation dependent on and what factors influence it?
Discriminating factors affecting incorporation: comparison of the fate of Eu3+–Cm3+ in the Sr carbonate–sulfate system
Kiel Holliday, Aurélie Chagneau, Moritz Schmidt, Francis Claret, Thorsten Schäfer and Thorsten Stumpf
Dalton Trans., 2012, 41, 3642-3647