AM_Vayrynenite_1 Formula: Mn.8 Fe.1 Be P O5 H Name: Vayrynenite Unit cell: 5.411 14.49 4.73 90.0 102.75 90.0 , V=361.71 Space group: P121/A1 (14)

Mrose M E , Appleman D E , Zeitschrift fur Kristallographie , 117 (1962) p.16-36, The crystal structures and crystal chemistry of vayrynenite,, (Mn,Fe)Be(PO4)(OH), and euclase, AlBe(SiO4)(OH), Locality: the Viitaniemi pegmatite in the parish of Erajarvi in central Finland