Evaluation of natural armbrusterite as a prototype for a new selective sorbent of monovalent cations

In this contribution the sorption properties of the framework-layered silicate mineral armbrusterite to monovalent Cs+ and Rb+ cations were reported. The models of crystal structures for the Cs-modified mineral and its decationized form are also reported. The results of experiments on the selection of necessary conditions for the synthetic analogue armbrusterite synthesis are discussed.