AM_Bermanite Formula: Mn3 P2 O14 H10 Name: Bermanite Unit cell: 5.446 19.25 5.428 90.0 110.3 90.0 , V=533.70 Space group: P1211 (4)

Kampf A R , Moore P B , American Mineralogist , 61 (1976) p.1241-1248, The crystal structure of bermanite, a hydrated manganese phosphate