K Ca (H3 O)3 (U O2)7 (P O4)4 O4 (H2 O)8

CaH₂₅KO₄₅P₄U₇

Demartin, F.Diella, V.Donzelli, S.Gramaccioli, C.M.Pilati, T.

Acta Crystallographica B (39,1983-) (1991) 47, 439-446

a=15.778Å   b=13.769Å   c=17.33Å

α=90°   β=90°   γ=90°