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Schwertmannite

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Formula:
Fe163+(OH,SO4)12-13O16 · 10-12H2O
System:
Tetragonal
Colour:
brownish yellow
Lustre:
Earthy
Hardness:
1 - 2
Name:
Originally named glockerite in 1855 by Karl Friedrich Naumann in honor of Ernst Friedrich Glocker [May 1, 1783 Stuttgart, Germany - July 18, 1858), professor of mineralogy at University of Breslau (University of Vratislav; Wroclaw, Poland) and author of numerous systematic mineralogical works. Renamed by J. M. Bigham, L. Carlson, E. Murad, in 1994 in honor of Udo Schwertmann (1922 - ), soil scientist at the University of München (Munich), Germany.
This page provides mineralogical data about Schwertmannite.

Classification of Schwertmannite

Approved 1990
7.DE.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
6.4.10.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
4 : Miscellaneous
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Type Occurrence of Schwertmannite

Year of Discovery:
1990

Physical Properties of Schwertmannite

Earthy
Diaphaneity (Transparency):
Opaque
Colour:
brownish yellow
Streak:
yellow
Hardness (Mohs):
1 - 2

Crystallography of Schwertmannite

Crystal System:
Tetragonal
Cell Parameters:
a = 10.66Å, c = 6.04Å
Ratio:
a:c = 1 : 0.567
Unit Cell Volume:
V 686.36 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
4.86 (37)
3.39 (46)
2.55 (100)
2.28 (23)
1.66 (21)
1.51 (24)
1.46 (18)
Comments:
Broad peaks

Chemical Properties of Schwertmannite

Formula:
Fe163+(OH,SO4)12-13O16 · 10-12H2O
Essential elements:
All elements listed in formula:

Relationship of Schwertmannite to other Species

7.DE.05MangazeiteAl2(SO4)(OH)4 · 3H2O
7.DE.10CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
7.DE.10CyanotrichiteCu4Al2(SO4)(OH)12 · 2H2O
7.DE.10UKI-1975-(SO:AlCu)(Cu, Al, SO4, H2O)
7.DE.20TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O
7.DE.25UtahiteCu5Zn3(TeO4)4(OH)8 · 7H2O
7.DE.35CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
7.DE.40OsakaiteZn4(SO4)(OH)6 · 5H2O
7.DE.45WilcoxiteMgAl(SO4)2F · 17H2O
7.DE.50Stanleyite(V4+O)(SO4) · 6H2O
7.DE.55McalpineiteCu3(Te6+O6)
7.DE.60HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2O
7.DE.62VolaschioiteFe4(SO4)O2(OH)6 · 2H2O
7.DE.65ZaheriteAl12(SO4)5(OH)26 · 20H2O
7.DE.70LautenthalitePbCu4(SO4)2(OH)6 · 3H2O
7.DE.75CamerolaiteCu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)

Other Names for Schwertmannite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Schwertmannite

Reference List:
Bigham, J. M., Carlson, L., Murad, E. (1994) Schwertmannite, a new iron oxyhydroxysulfate from Pyhasalmi, Finland, and other localities. Mineralogical Magazine, 58, 641-664.

European Journal of Mineralogy (1995): 7: 547-552.

Lapis (1996): 21(5): 33-34.

New Minerals (1997), New Minerals 1990-1994.

Fernandez-Martinez, A., Timon, V., Roman-Ross, G., Cuello, G.J., Daniels, J.E., Ayora, C. (2010): The structure of schwertmannite, a nanocrystalline iron oxyhydroxysulfate. American Mineralogist 95, 1312-1322.

French, R.A., Caraballo, M.A., Kim, B., Rimstidt, J.D., Murayama, M., Hochella, M.F. (2012): The enigmatic iron oxyhydroxysulfate nanomineral schwertmannite: Morphology, structure, and composition. American Mineralogist 97, 1469-1482.

Rebecca A. French, Niven Monsegue, Mitsuhiro Murayama, Michael F. Hochella, Jr. (2014): The structure and transformation of the nanomineral schwertmannite: a synthetic analog representative of field samples. Physics and Chemistry of Minerals 41, 237-246.

Internet Links for Schwertmannite

Localities for Schwertmannite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia
 
  • South Australia
    • Murray Basin
      • Murray Riverlands
Rob Fitzpatrick, Paul Shand, Mark Raven and Stuart McClure, 2010, Occurrence and environmental significance of sideronatrite and other mineral precipitates in Acid Sulfate Soils. 19th World Congress of Soil Science, Soil Solutions for a Changing World
Canada
 
  • British Columbia
    • Stikine Mining Division
      • Whitewater Mts
        • Mount Eaton
Gunnar Farber
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
Lapis 2002(7/8), 63-65
  • Moravia (Mähren; Maehren)
    • Olomouc Region
Petr Paulis (2001): Die interessanten mineralogische Fundstellen in Mahren und Schlesien; Kuttna, Kutná Hora p69-73
Pauliš, P.: Die interessanten mineralogische Fundstellen in Mähren und Schlesien. Kutná Hora: Kuttna, 2001.
Finland (TL)
 
  • Northern Finland Region
    • Pyhäjärvi
Min.Mag.(1994) 58, 641-648
Germany
 
  • Thuringia
    • Saalfeld
      • Garnsdorf
XRD analysis (T. Witzke)
    • Thuringian Forest
      • Schmiedefeld
Ullrich, B. & Ullrich, B. (2010): Der Aufschluss 61, 75-79.
Greenland
 
  • Qaasuitsup
    • Saviksoah Peninsula
T. P. Pedersen, SCHWERTMANNITE AND AWARUITE AS ALTERATION PRODUCTS IN IRON METEORITES. 62nd Annual Meteoritical Society Meeting
Hungary
 
  • Heves Co.
    • Mátra Mts
      • Gyöngyösoroszi
Király,ELTE,2008; Farkas, I. M. & Weiszburg, T. G. (2009): Mitt. Österr. Mineral. Ges. 155, 57. (Abs.)
      • Mátraszentimre
Király,ELTE,2008
  • Pest Co.
    • Börzsöny Mts
Collection of NHM, Vienna
Italy
 
  • Liguria
    • Genova Province
      • Sestri Levante
Carbone, C. (2005): Seminar on “Minerali di neo-formazione nei processi di acid-rock drainage”. Genova, Italy, 17/01/2005.
Japan
 
  • Honshu Island
    • Kanto Region
      • Gunma Prefecture
Nakamura & Akai (1999) Koubutsu-Gakkai Kou’en-Youshi, 131
Peru
 
  • Tacna Department
    • Jorge Basadre Province
Diaby, N., Dold, B., Buselli, E., & Vicetti, R. (2006). EFFECTS ON ELEMENT MOBILITY BY THE CONSTRUCTION OF A WETLAND ON THE MARINE SHORE PORPHYRY COPPER TAILINGS DEPOSIT, BAHÍA DE ITE, PERU. In 7th International Conference on Acid Rock Drainage (ICARD), March (pp. 26-30).
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Kaczawskie Mts
      • Radzimowice
        • Stara Góra
Siuda, R.: Minerały siarczanowe ze Starej Góry. Otoczak, 2004, nr. 31, p. 52-57.
1. R. Siuda, 2001 : New sulphate minerals from the Stara Góra oxidised zone, Radzimowice, Kaczawskie Mts., Mineralogical Society of Poland, Special Papers, vol 18, 186-188
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica Co.
Pauliš P., Ďuďa R., 2002: Nejzajimavejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 134p.
Ďuďa R.,Kotuľak P., Káňa R., 1993: Bergbau und Mineralien von Banská Štiavnica (Schemnitz), Slowakei. Emser Hefte, 14, 3, 1-70, Haltern
    • Žiar nad Hronom Co.
Ďuďa R., 1993 : Die mineralien der Gold und Silber - lagersttäte von Kremnitz ( Kremnica) in der Slowakei. Mineralien Welt /Haltern,Nemecko/,5, s. 20 - 32
  • Bratislava Region
    • Pezinok Co.
- Trtíková S., Kušnierová M. Chovan, M., 1999: Precipitation and chemical composition of iron ochres in the pyrite and stibnite deposits in The Malé Karpaty Mts. Slov. Geol. Magaz. 5, 3, 179-186. - Trtíková S., 2001: Nové sekundárne minerály pyritových a Sb-Au ložísk okolia Pezinka. Minerál, 9, 1, 21-22. (in Slovak)
  • Košice Region
    • Spišská Nová Ves Co.
Ďuďa R., Peterec D., 1995 : Die Mineralien der siderit - baryt lagersttäte von Rudňany ( Kotterbach ) in der Slowakei. Mineralien Welt /Haltern/, 1, s.20 - 31
  • Prešov Region
    • Prešov Co.
      • Červenica
        • Dubník
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
Taiwan
 
  • Taiwan Province
    • New Taipei City
      • Ruifang District
James Huang
USA
 
  • Alabama
    • De Kalb Co.
T. P. Pedersen, SCHWERTMANNITE AND AWARUITE AS ALTERATION PRODUCTS IN IRON METEORITES. 62nd Annual Meteoritical Society Meeting
  • Colorado
    • San Juan Co.
Desborough, G. A., Smith, K. S., Lowers, H. A., Swayze, G. A., Hammarstrom, J. M., Diehl, S. F., Leinz, R. W. and Driscoll, R. L. (2010): Mineralogical and chemical characteristics of some natural jarosites. Geochimica et Cosmochimica Acta, 74, 1041-1056.
  • Massachusetts
    • Franklin Co.
      • Rowe
Cerato, Amy (2003): Mineralogical Study of Davis Mine, Rowe, MA, Using X-Ray Diffraction Techniques.
  • North Carolina
    • Swain Co.
Hammarstrom,Jane M. Meier,Allen L. Seal II,Robert R. and Jackson,John C.(2003)Weathering of Sulfidic Shale and Copper Mine Waste:Secondary Minerals and Metal Cycling in Great Smoky Mountains National Park,Tennessee,and North Carolina,USA,U.S Geological Survey
      • Swain County Copper District (Fontana District)
Hammarstrum,Jane M. Meier,Allen L. Seal II,Robert R. and Jackson,John C.(2003)Weathering of Sulfidic Shale and Copper Mine Waste:Secondary Minerals and Metal Cycling in Great Smoky Mountains National Park,Tennessee and North Carolina,USA, U.S Geological Survey
  • Pennsylvania
    • Centre Co.
      • State College
        • Skytop
U.S. Geological Survey/ U.s. Department of the Interior
  • Tennessee
    • Sevier Co.
      • Great Smoky Mountains National Park
Coskren, T. D. & Lauf, R. J. (2000): The Minerals of Alum Cave Bluff, Great Smoky Mountains, Tennessee. Mineralogical Record, 31, 163-175.
Mineral and/or Locality  
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