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Fig. 2 | Geochemical Transactions

Fig. 2

From: Fe(II) reduction of pyrolusite (β-MnO2) and secondary mineral evolution

Fig. 2

Kinetics of Fe(II) loss from (open markers) and Mn appearance into (closed markers) the aqueous phase. Triangles (Δ) indicate data for the initial suspension of pyrolusite in Fe(II), circles () and squares (□) indicate second and third resuspensions, respectively. Initial Fe(II) concentrations for this series of experiments were 2.4 mM. Hatched circles and squares indicate controls where Mn/Fe particles were resuspended in Fe-free buffer to check for Fe and Mn release to solution in the absence of Fe(II)

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