Precipitation of Fe oxyhydroxides and jarosite from acidic groundwater
- 1 June 1995
- journal article
- research article
- Published by Taylor & Francis Ltd in GFF
- Vol. 117 (2), 81-85
- https://doi.org/10.1080/11035899509546203
Abstract
The ferric minerals goethite, lepidocrocite, and jarosite precipitate from groundwater contaminated by mine waste leachate in Dalarna, Sweden. Goethite and lepidocrocite occur as massive precipitates at the water table, cementing together mineral grains and smaller rock fragments. Analysis of the precipitates by SEM indicates that they are primarily microcrystalline, but other crystal habits are also observed. Although jarosite is not thermodynamically stable at the pH‐Eh conditions measured in the groundwater, it is postulated that jarosite can form at the capillary fringe where very acidic and high sulfate conditions can develop in micropores. In terms of the ferric oxyhydroxides, the substitution of Al‐for‐Fe in goethite, the rate of Fe2+ oxidation, and the presence of carbonate species are probably the major factors influencing the formation of goethite relative to lepidocrocite. Herbert, R.B., 1995: Precipitation of Fe oxyhydroxides and jarosite from acidic groundwater. GFF, Vol. 117 (Pt. 2, June), pp. 81–85. Stockholm. ISSN 1103–5897.Keywords
This publication has 10 references indexed in Scilit:
- Schwertmannite, a new iron oxyhydroxysulphate from Pyhäsalmi, Finland, and other localitiesMineralogical Magazine, 1994
- The Siljan ring impact structure: Possible connections with minor ores in its neighborhoodGFF, 1994
- Metal Transport in Groundwater Contaminated by Acid Mine DrainageHydrology Research, 1994
- Formation of alunite, jarosite and hydrous iron oxides in a hypersaline system: Lake Tyrrell, Victoria, AustraliaChemical Geology, 1992
- Revised Chemical Equilibrium Data for Major Water—Mineral Reactions and Their LimitationsPublished by American Chemical Society (ACS) ,1990
- The effect of CO2 and oxidation rate on the formation of goethite versus lepidocrocite from an Fe(II) system at pH 6 and 7Clay Minerals, 1990
- Processes controlling metal ion attenuation in acid mine drainage streamsGeochimica et Cosmochimica Acta, 1983
- The effect of sulfate on aluminum concentrations in natural waters: some stability relations in the system Al2O3-SO3-H2O at 298 KGeochimica et Cosmochimica Acta, 1982
- Jarosite-geoethite stabilities at 25 °C, 1 ATMMineralium Deposita, 1971
- Die fraktionierte Extraktion der freien Eisenoxyde in Böden, ihre mineralogischen Formen und ihre EntstehungsweisenJournal of Plant Nutrition and Soil Science, 1959