AM_Hureaulite
Formula: Mn5 P4 O20 H6
Name: Hureaulite
Unit cell: 17.594 9.086 9.404 90.0 96.67 90.0 , V=1493.14
Space group: C12/C1 (15)

Moore P B , Araki T , American Mineralogist , 58 (1973) p.302-307, Hureaulite, Mn5(H2O)4[PO3(OH)]2[PO4]2: Its atomic arrangement