Greigite: a true intermediate on the polysulfide pathway to pyrite |
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| Authors: | Stefan Hunger and Liane G Benning |
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| Institution: | (1) Earth and Biosphere Institute, School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK |
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| Abstract: | The formation of pyrite (FeS2) from iron monosulfide precursors in anoxic sediments has been suggested to proceed via mackinawite (FeS) and greigite (Fe3S4). Despite decades of research, the mechanisms of pyrite formation are not sufficiently understood because solid and dissolved
intermediates are oxygen-sensitive and poorly crystalline and therefore notoriously difficult to characterize and quantify. |
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