Citation: Zubkova, N. V.; Kolitsch, U.; Pekov, I. V.; Turchkova, A. G.; Vigasina, M. F.; Pushcharovsky, D. Y.; Tillmanns, E. (2009). Crystal chemistry of Rb-, Sr-, Ba-, Ca- and Pb-exchanged forms of natural hilairite Locality: Kirovskii mine, Khibiny alkaline complex, Kola Peninsula, Russia Note: sample was synthesized by cation exchange at 150 C. European Journal of Mineralogy, 21, pp. 495-506.