Citation: Pearce, J.R.; Mortier, W.J.; Lunsford, J.H.; Uytterhoeven, J.B. (1981). Crystallographic study of the distribution of cations in Y-type zeolites containing Fe(II) and Fe(III). Journal of the Chemical Society. Faraday Transactions 1., 77, pp. 937-946.
Formula: Al56.0064 Fe7.36 Na17.92 O384 Si135.994
Chemical name:Fe14.36 Na27.92 (Al56 Si136 O384) (H2 O)47 H.64