AM_Strengite_1 Formula: Fe P O6 H4 Name: Strengite Unit cell: 5.335 9.808 8.72 90.0 90.54 90.0 , V=456.26 Space group: P121/N1 (14)

Taxer K , Bartl H , Crystal Research and Technology , 39 (2004) p.1080-1088, On the dimorphy between the variscite and clinovariscite group: refined, finestructural relationship of strengite and clinostrengite, Fe(PO4)*2H2O, Locality: Kreuzberg, Pleystein, Barvaria