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Erionite-Ca from
Žežice, Ústí nad Labem District, Ústí nad Labem Region, Czech Republic

Formula:(Ca,K2,Na2)2[Al4Si14O36] · 15H2O
Comments:Originally described as offretite. Analysis corresponds to erionite-Ca, however (cf. Passaglia et al., 1997).
Validity:Believed Valid
References:Rychlý, R., Langrová, A., Had, J.: Chemicstry of cowlesite from Zezice, Bohemia. Scripta Fac. Sci. Nat. Univ. Masaryk. Brun, Geol., 1996, vol. 26, p. 43 - 44.
Mineral Data:Click here to view Erionite-Ca data
Locality Data:Click here to view Žežice, Ústí nad Labem District, Ústí nad Labem Region, Czech Republic
Mineral and/or Locality  
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