Articles | Volume 35, issue 2
https://doi.org/10.5194/ejm-35-199-2023
https://doi.org/10.5194/ejm-35-199-2023
Research article
 | 
30 Mar 2023
Research article |  | 30 Mar 2023

Cation and anion ordering in synthetic lepidolites and lithian muscovites: influence of the OH ∕ F and Li ∕ Al ratios on the mica formation studied by NMR (nuclear magnetic resonance) spectroscopy and X-ray diffraction

Lara Sulcek, Bernd Marler, and Michael Fechtelkord

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Short summary
Synthetic lepidolites and Li-muscovites were characterised by nuclear magnetic resonance (NMR) spectroscopy and X-ray diffraction. Both Li and F / OH content influence the occurrence of the impurity phases. A solid solution series exists for lepidolites with polylithionite and trilithionite as endmembers but does not between trilithionite and muscovite. NMR investigations indicate there is a preference for incorporating fluorine and OH groups near Li-rich and Al-rich environments, respectively.