Host: Japan Association of Mineralogical Sciences
X-ray diffraction Rietveld structure-refinement data for synthetic Rb-lepidolite(1M) micas in the Rb-polylithionite (abbreviated here as Rb-pol) – rubidium trilithionite (Rb-tri) – rubidium ephesite (Rb-eph) join, Rb(Li2-xAl1+x)(Si4-2xAl2x)O10(OH/OD,F)2 (x = 0.0–1.0), are reported. As fluoro-rubidium–polylithionite and hydroxyl-rubidium–ephesite end members are stable, up to three micas are in coexistence in this series. Crystal chemical and structural parameters for intermediate rubidium-trilithionites varies continuously, but the F2RbPol- and RbEph-end members crytal-structural parameters are rather of constant.