Sherriff B L , Sokolova E V , Kabalov Y K , Jenkins D M , Kunath-Fandrei G , Goetz S , Jager C , Schneider J , The Canadian Mineralogist , 38 (2000) p.1201-1213, Meionite: Rietveld structure-refinement, Si MAS and Al SATRAS NMR, spectroscopy, and comments on the marialite-meionite series, Note: sample MONT, Locality: Monte Somma, Italy