AM_Gamagarite Formula: (Ba1.8 Sr.2) (Fe.56 Mn.44) (V1.82 As.18) O9 H Name: Gamagarite Unit cell: 9.121 6.142 7.838 90.0 112.88 90.0 , V=404.55 Space group: P121/M1 (11)

Basso R , Palenzona A , Zefiro L , Neues Jahrbuch fur Mineralogie, Monatshefte , 1987 (1987) p.295-304, Gamagarite: new occurrence and crystal structure refinement, Locality: a manganese ore deposit at Molinello mine, Val Graveglia, Eastern Liguria, Italy