AM_Metaschoepite Formula: Na.48 U8 O37.91 H34 Name: Metaschoepite Unit cell: 14.6801 14.0287 16.7196 90.0 90.0 90.0 , V=3443.28 Space group: PBCN (60)

Klingensmith A L , Deely K M , Kinman W S , Kelly V , Burns P C , American Mineralogist , 92 (2007) p.662-669, Neptunium incorporation in sodium-substituted metaschoepite, Locality: Katanga, Congo, Sample: Natural