Encyclopedia of Geobiology

2011 Edition
| Editors: Joachim Reitner, Volker Thiel


  • Volker Thiel
Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-9212-1_184

Siderite is an iron carbonate mineral (FeCO3, 48% Fe) belonging to the calcite group (hexagonal crystal system). Magnesium and manganese may substitute for the iron. Siderite crystals are yellow to dark brown in color, rhombohedral in shape, and with curved and striated faces, and also occur in masses. Siderite is commonly found in bedded sedimentary iron ores, including banded iron formations (BIFs, see entry  Banded Iron Formations), and in hydrothermal veins. It is also a common diagenetic mineral, forming at shallow burial depths in shales and sandstones where it tends to form concretions. The diagenetic formation of siderite strongly depends on the availability of Fe2+ ions in pore waters (see entry  Pore Waters) and is thus a phenomenon of suboxic to anoxic environments (Berner, 1971). Diagenetic siderite precipitation has been linked to microbially mediated reactions, specifically to the release of ferrous (Fe2+) iron due to dissimilatory iron reduction performed by Fe3+-reducin...


Iron Sulfide Iron Reduction Band Iron Formation Iron Sulfide Formation Shallow Burial 
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  1. Berner, R. A., 1971. Principles of Chemical Sedimentology. New York: McGraw-Hill.Google Scholar
  2. Hansel, C. M., Benner, S. G., Neiss, J., Dohnalkova, A., Kukkadapu, R. K., and Fendorf, S., 2003. Secondary mineralization pathways induced by dissimilatory iron reduction of ferrihydrite under advective flow. Geochimica et Cosmochimica Acta, 67, 2977–2992.CrossRefGoogle Scholar
  3. Pye, K., Dicksin, J. A. D., Schiavon, N., Coleman, M. L., and Cox, M., 2006. Formation of siderite–Mg–calcite–iron sulphide concretions in intertidal marsh and sandflat sediments, north Norfolk, England. Sedimentology, 37, 325–343.CrossRefGoogle Scholar
  4. Roh, Y., Zhang, C. L., Vali, H., Lauf, R. J., Zhou, J., and Phelps, T. J., 2003. Biogeochemical and environmental factors in Fe biomineralization: magnetite and siderite formation. Clays and Clay Minerals, 51, 83–95.CrossRefGoogle Scholar

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© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Volker Thiel
    • 1
  1. 1.Geobiology Group Geoscience CenterUniversity of GöttingenGöttingenGermany