Citation: Demartin, F.; Diella, V.; Donzelli, S.; Gramaccioli, C.M.; Pilati, T. (1991). The importance of accurate crystal structure determination of uranium minerals. I. Phosphuranylite K Ca (H3 O)3 (U O2)7 (P O4)4 O4.8 H2O. Acta Crystallographica B (39,1983-), 47, pp. 439-446.
Formula: Ca H25 K O45 P4 U7
Chemical name:K Ca (H3 O)3 (U O2)7 (P O4)4 O4 (H2 O)8