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Oct 8, 2009 ... Schwertmannite (with a distinct "pin cushion" morphology) commonly forms in iron -rich, acid sulfate waters in the pH-range of 2 - 4. ...
en.wikipedia.org/wiki/Schwertmannite - 21k - Similar pages
http://en.wikipedia.org/wiki/Schwertmannite
Click Here for Larger Schwertmannite Image in a New Browser Window Images: .... Print or Cut-and-Paste your Schwertmannite Specimen Label here : ...
webmineral.com/data/Schwertmannite.shtml - 38k - Similar pages
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Schwertmannite mineral data, information about Schwertmannite, its properties and worldwide locations.
www.mindat.org/min-7281.html - 43k - Similar pages
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References: (1) Bigham, J.M., L. Carlson, and E. Murad (1994) Schwertmannite, a new iron oxyhydroxysulphate from Pyhäsalmi, Finland, and other localities. ...
www.handbookofmineralogy.org/pdfs/schwertmannite.pdf - Similar pages
http://www.handbookofmineralogy.org/pdfs/schwertmannite.pdf
An infrared study is made of the chemical changes of synthetic schwertmannite, which normally is a coal oxidation by-product formed by thiobacillus ...
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May 5, 2009 ... Chemical conditions beneath glaciers are difficult to observe and are usually studied by sampling meltwaters emerging from glacial oulets or ...
www.sciencedaily.com/releases/2009/05/0905050618... - 48k - Similar pages
http://www.sciencedaily.com/releases/2009/05/090505061830.htm
Schwertmannite [Fe8O8(OH)6SO4] has recently been found to be the dominant mineral of iron precipitate accumulations from surface environments surrounding ...
linkinghub.elsevier.com/retrieve/pii/S0016703706015559 - Similar pages
http://linkinghub.elsevier.com/retrieve/pii/S0016703706015559
Evidence from transmission electron microscopy (TEM) and electron nanodiffraction (END) provides a new understanding of schwertmannite, ...
ammin.geoscienceworld.org/cgi/content/abstract/89/11-12/17... - Similar pages
http://ammin.geoscienceworld.org/cgi/content/abstract/89/11-12/1735
Schwertmannite (Fe8O8(OH)6SO4) is a common Fe(III)-oxyhydroxysulfate mineral in acid-sulfate systems, where its formation and fate strongly influence water ...
works.bepress.com/edward_burton/27/ - Similar pages
http://works.bepress.com/edward_burton/27/
Additionally Table DR1 shows that freeze-dried schwertmannite is 20-30% soluble in ascorbate and 85-100% soluble in dithionite (schwertmannite Total Fe data ...
ftp://rock.geosociety.org/pub/reposit/2009/2009107.pd... - Similar pages
ftp://rock.geosociety.org/pub/reposit/2009/2009107.pdf