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Comparison of pyrite oxidation by “F. myxofaciens” P3G and that by the A. ferrooxidans type strain, showing changes in soluble iron concentrations (solid lines) and pH (broken lines). Symbols: ■, “F. myxofaciens” P3G; ●, A. ferrooxidans type strain; +, abiotic controls. Data points are mean values of duplicate cultures, and error bars (where visible) depict data ranges.
