Mossbauer analysis for goethite reacted with Fe(II) and membrane fraction of Shewanella oneidensis

Based on literatures, we expect that goethite will transform, to some extent, into other iron minerals in the presence of Fe(II). We prepared goethite samples that were incubated with either Fe(II) abiotically or membrane fraction of Shewanella oneidensis. Membrane fraction of S. oneidensis effectively reduced goethite, producing Fe(II). Using Mossbauer technique, we want to identify what iron phases are present in the reacted goethite.