Note on the mineral list: The originally described offretite (Ridkosil & Danek, 1983) is in fact erionite-Ca (cf. Passaglia et al., 1997).
Refs.:
- Ridkosil, T & Danek, M (1983): New physical and chemical data for levyne-offretite intergrowths from Zezice, near Usti nad Labem, Czechoslovakia. Neues Jahrbuch für Mineralogie, Abhandlungen 147, 99-108.
- Rychlý, R., Langrová, A., Had, J. (1996): Chemicstry of cowlesite from Zezice, Bohemia. Scripta Fac. Sci. Nat. Univ. Masaryk. Brun, Geol., 26, 43-44.