AM_Richetite
Formula: U36 Pb8.74 Fe.47 Mg.83 O173 H24
Name: Richetite
Unit cell: 20.9391 12.1 16.345 103.87 115.37 90.27 , V=3605.39
Space group: P1 (1)

Burns P C , The Canadian Mineralogist , 36 (1998) p.187-199, The structure of richetite, a rare lead uranyl oxide hydrate