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Akaganeite

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Formula:
β-Fe3+O(OH,Cl)
System:
Monoclinic
Colour:
Yellowish brown, rusty ...
Name:
Named after its discovery locality
Note: The spelling akaganéite is incorrect (Burke, 2008).

Classification of Akaganeite

Approved 1962
4.DK.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
K : With large (+- medium-sized) cations; tunnel structures
6.1.6.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
1 : XO(OH)
7.20.6

7 : Oxides and Hydroxides
20 : Oxides of Fe
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Type Occurrence of Akaganeite

General Appearance of Type Material:
fine-grained to powdery masses, consisting of bundles of tiny spindlelike crystals up to 5 µm in length
Geological Setting of Type Material:
oxidation zone of a pyrrhotite-bearing iron sulphide deposit, apparently formed from pyrrhotite by ferric-sulphate-bearing solutions
Associated Minerals at Type Locality:

Occurrences of Akaganeite

Geological Setting:
in oxidation zones of pyrrhotite-bearing iron sulphide deposits, as an important constituent of some soils, in certain geothermal brines and in sea-floor nodules, also formed as corrosion product of some meteorites

Physical Properties of Akaganeite

Earthy
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Yellowish brown, rusty brown
Streak:
Brownish yellow
Density:
3.52 g/cm3 (Calculated)

Crystallography of Akaganeite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.561Å, b = 3.031Å, c = 10.483Å
β = 90.63°
Ratio:
a:b:c = 3.484 : 1 : 3.459
Unit Cell Volume:
V 335.54 ų (Calculated from Unit Cell)
Z:
8
X-Ray Powder Diffraction Data:
d-spacingIntensity
1.6434 (35)
2.2952 (35)
2.5502 (55)
2.6344 (25)
3.333 (100)
5.276 (30)
7.467 (40)
Comments:
Pattern of synthetic β-FeO(OH)

Optical Data of Akaganeite

Type:
Biaxial
Dispersion:
r > v strong

Chemical Properties of Akaganeite

Formula:
β-Fe3+O(OH,Cl)
Idealised Formula:
β-Fe3+O(OH)
Essential elements:
All elements listed in formula:
Analytical Data:
Sample from Akagané Mine, Japan
Other samples from the locality contain significant Cl; Si and Al are probably impurities
SiO2 (3.10)
AlsO3 (1.21)
Fe2O3 (78.23)
FeO (0.82)
Na2O (0.62)
K2O (0.19)
H2O (15.16)

sum 99.33 wt.-%

Relationship of Akaganeite to other Species

4.DK.05aCoronaditePb(Mn64+Mn23+)O16
4.DK.05aCryptomelaneK(Mn74+Mn3+)O16
4.DK.05aHollanditeBa(Mn64+Mn23+)O16
4.DK.05aManjiroiteNa(Mn74+Mn3+)O16
4.DK.05bMannarditeBa(Ti64+V23+)O16
4.DK.05bPrideriteK(Ti74+Fe3+)O16
4.DK.05bRedledgeiteBa(Ti64+Cr23+)O16
4.DK.05bHenrymeyeriteBa(Ti74+Fe2+)O16
4.DK.05aStrontiomelaneSr(Mn64+Mn23+)O16
4.DK.10Romanèchite(Ba,H2O)2Mn5O10
4.DK.10Todorokite(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12 · 3H2O
7.20.1WüstiteFeO
7.20.2MagnetiteFe2+Fe23+O4
7.20.3MaghemiteFe23+O3
7.20.4HematiteFe2O3
7.20.5Goethiteα-Fe3+O(OH)
7.20.7FeroxyhyteFe3+O(OH)
7.20.8Lepidocrociteγ-Fe3+O(OH)
7.20.9FerrihydriteFe103+O14(OH)2
7.20.10Amakinite(Fe2+,Mg)(OH)2
7.20.11MagnesioferriteMgFe23+O4
7.20.12MuskoxiteMg7Fe4O13 · 10H2O
7.20.13SrebrodolskiteCa2Fe23+O5
7.20.14HercyniteFe2+Al2O4
7.20.15BrownmilleriteCa2(Al,Fe3+)2O5

Other Names for Akaganeite

Name in Other Languages:
German:Akaganeit
Japanese:赤金鉱
Simplified Chinese:四方纤铁矿
β-羟铁矿
Spanish:Akaganeita

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 Akaganeite

Reference List:
Mackay, A. L. (1962): β-ferric ohyhydroxide - akaganéite. Mineralogical Magazine 33, 270-280. - American Mineralogist (1963), 48, 711 (abstract).

American Mineralogist (1971), 56, 659.

Murad, E. (1979): Mössbauer and X-ray data on β-FeOOH (akaganéite). Clay Minerals 14, 273-284.

Buchwald, V. F. and Clarke, R. S., Jr. (1989): Corrosion of Fe-Ni alloys by Cl-containing akaganéite (β-FeOOH): the Antarctic meteorite case. American Mineralogist 74, 656-667.

Post, J. E. and Buchwald, V. F. (1991): Crystal structure refinement of akaganéite. American Mineralogist 76, 272-277.

Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 7.

Burke, E. A. J. (2008): Tidying up Mineral Names: An IMA scheme for Suffixes, Hyphens and Diacritical Marks. Mineralogical Record, 39, 131-135.

Internet Links for Akaganeite

Localities for Akaganeite

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.
Antarctica
 
  • Eastern Antarctica
    • Coats Land
      • Pensacola Mts
        • Neptune Mountains
Buchwald, V. & Clark Jr, R.S. (1989) Corrosion of Fe-Ni alloys by Cl-containing akaganéite (β-FeOOH): The Antarctic meteorite case. American Mineralogist 74(5&6):656-667. (May-June1989).
    • Victoria Land
      • Allan Hills
Kuebler, K. E. (2013) A comparison of the iddingsite alteration products in two terrestrial basalts and the Allan Hills 77005 martian meteorite using Raman spectroscopy and electron microprobe analyses: Journal of Geophysical Research: Planets 118 (4): 803-830. (Apr 2013).
Argentina
 
  • Chaco
    • Doce de Octubre Department
      • Gran Chaco
J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
Bogdanov, Y.A., Vikent’ev, I.V., Lein, A.Y., Bogdanova, O.Y., Sagalevich, A.M., and Sivtsov, A.V. (2008): Geology of Ore Deposits 50(2), 119-134.
Bogdanov, Y.A., Vikent’ev, I.V., Lein, A.Y., Bogdanova, O.Y., Sagalevich, A.M., and Sivtsov, A.V. (2008): Geology of Ore Deposits 50(2), 119-134.
Bogdanov, Y.A., Vikent’ev, I.V., Lein, A.Y., Bogdanova, O.Y., Sagalevich, A.M., and Sivtsov, A.V. (2008): Geology of Ore Deposits 50(2), 119-134.
Belgium
 
  • Liège Province
    • Visé
1./ A.M. Fransolet, J Jedwab and R. Van Tassel, 1974, Inventaire minéralogique de Richelles, Belgique, Annales de la Société Géologique de Belgique, Tome 27, pp. 23-26.
Brazil
 
  • Santa Catarina
    • São Francisco do Sul
      • Morro do Rócio
[Mandarino, 1997]
Canada
 
  • Ontario
    • Sudbury District
      • Levack Township
Ames, D.E., Kjarsgaard, I.M., and Douma, S.L., 2003, Sudbury Ni-Cu-PGE Ore Mineralogy Compilation: Sudbury Targeted Geoscience Initiative (TGI): Geological Survey of Canada, Open File 1787
Chile
 
  • Tarapacá Region
    • El Tamarugal Province
      • Salar Grande
samples analysed by Anthony Kampf, Curator Emeritus of Mineral Sciences at NHM of LAC, California; Kampf, A.R., Sciberras, M.J., Williams, P.A., Dini, M. & Molina Donoso, A.A. (2013): Leverettite from the Torrecillas mine, Iquique Provence, Chile: the Co-analogue of herbertsmithite. Mineralogical Magazine 77, 3047-3054.
China
 
  • Guangxi Zhuang Autonomous Region
    • Hechi Prefecture
      • Nandan Co.
        • Lihu - Yaochai area
B Hendriksen collection
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • Vysočina Region
      • Námešť nad Oslavou
        • Vícenice
Skála R., Frýda J., Sekanina J.: Mineralogy of the Vícenice octahedrite. Journal of the Geological Society, 2000, 45, 1-2, 175-192.
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
  • Lower Saxony
    • Harz
      • Goslar
        • Astfeld
No reference listed
Schnorrer, G. (1993): Mineralogische Notizen VI. Aufschluss, 44, 44-58.
  • North Rhine-Westphalia
    • Sauerland
      • Iserlohn
        • Letmathe
Blaß, G. & Graf, H.W. (1993): Neue Funde. Mineralien-Welt, 4 (2), 57-60.
  • Saxony
    • Erzgebirge
      • Marienberg District
        • Wolkenstein
Tony Nickischer
  • Thuringia
    • Suhl
http://www.emc2012.org.uk//documents/Abstracts/Abstracts/EMC2012_0090.pdf
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Schnorrer-Köhler, G., Standfuss, L. & Standfuss, K. (1991): Neue Funde aus den antiken Schlacken von Lavrion, Griechenland. Lapis, 16 (6), 21-23; 58.
        • Passa Limani area
Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals of the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
        • Sounion area
No reference listed
        • Thorikos area
Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian (1996) Laurion: The Minerals in the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
        • Vrissaki area
Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals in the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
India
 
  • Uttar Pradesh
Organizing Committee IMA-IMAGOD meetings '70. Editorial Committee (1970) Introduction to Japanese Minerals. Geological Survey of Japan
Italy
 
  • Lombardy
    • Pavia Province
      • Barbianello
Fioretti A.M., Zipfel J. (2004): Barbianello: An ungrouped nickel-rich iron meteorite found in Italy. Meteoritics and Planetary Science, 39, Issue S8, A143-149.
  • Sardinia
    • Sassari Province
      • Sassari
Ara D., Sanna L., Rossi A., Galli E., De Waele J. (2013): Minerali secondari in ambiente sotterraneo: la miniera dell’Argentiera (Sardegna nord-occidentale). In: Cucchi F., Gudi P. (eds.), Atti del XXI Congresso Nazionale di Speleologia “Diffusione delle conoscenze”, Sessione Attività di esplorazione e ricerca. Trieste 2-5 giugno 2011. Edizioni Università di Trieste, Trieste, 290-295.
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Int. Assoc. of Collectors of Slag Minerals, 10 (2), 4-6.
        • Sassetta
Jansen, H. & van den Berg, W. (1998): Slakkenmineralen in Toscane (Italië). Gea, no. 4, 109-117 (in Dutch).
      • Piombino
Cerutti, G. and Preite, D. (1995): Mineralien der etruskischen Schlacken von Baratti, Toskana. Lapis, 20 (4), 13-18; 50 (in German).
Japan (TL)
 
  • Honshu Island
    • Tohoku Region
      • Iwate Prefecture
        • Esashi City
[Min.Mag.(1961) 33, 270-280; Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
Mars
 
  • Aeolis quadrangle
    • Gale Crater
      • Aeolis Palus
Several papers on: Science Express, www.sciencemag.org , 9 December 2013, summarized by Dr Vivien Gornitz, Bulletin of the New York Mineralogical Club, February 2014.
Mexico
 
  • Sonora
    • Mun. de Trincheras
      • La Mur
Panczner(1987):87 - 295.
New Zealand
 
  • North Island
    • Waikato
      • Taupo
        • Orakeikorako Thermal Area
Rod Martin, Minerals of Ruatapu Cave, Orakei Korako, Taupo Volcanic Zone. Essence of Microscope (NZ)
Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Rudawy Janowickie Mts
      • Jelenia Góra District
        • Miedzianka (Kupferberg)
Gunnar Farber
  • Małopolskie
    • Tarnów
      • Ciężkowice
Musiał J. 1996: Results of preliminary Mossbauer spectroscopy analysis of ochres from Janowice, Ciężkowice region, Outer Carpathians.Mineralogia Polonica, vol. 27, no. 1
Red Sea
 
J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
[World of Stones 12:49]
  • North-Western Region
    • Ryazanskaya Oblast'
      • Kasimov District
Pekov, I.V. et al (2007) European Journal of Mineralogy, 19, 891-898.
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Khibiny Massif
http://maurice.strahlen.org/kola/khibiny.htm
Slovakia
 
  • Prešov Region
    • Prešov Co.
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
Sweden
 
  • Norrbotten
    • Pajala
      • Kitkiöjärvi
D. Holtstam and J. Söderhielm : "The Muonionalusta iron meteorite from Lapland, Sweden : New finds and findings", 5th International Conference "Mineralogy & Museums", Paris, Sept. 5-8th 2004, Bull. de Liaison de la Soc. Franç. de Minéralogie et Cristallographie, 2004, Vol 16, N°2.
The Moon
 
  • Descartes Highlands
http://curator.jsc.nasa.gov/lunar/letss/Mineralogy.pdf
  • Mare Crisium
Mokhov A.V., Kartashov P.M., Bogatikov O.A. (2007) Moon under a microscope, - Moscow, Nauka, p.128 (in Rus.).
UK
 
  • England
    • Cornwall
      • St Agnes District
        • Perranzabuloe
          • Perran Iron Lode (Great Perran Iron Lode)
Ryback, G., and Tandy, P.C. (1992): Mineralogical Magazine 56, 261-275; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
    • Norfolk
      • Wells-next-the-Sea
J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
Tindle, A.G. (2008) Minerals of Britian and Ireland
Ukraine
 
  • Crimea Oblast'
    • Crimea peninsula
Chukhrov F.V., Gorshkov A.I., Berezovskaya V.V., Sivtsov A.V. (1987) New data on mineralogy of Kerch ores, - Izvestiya AN SSSR, ser. geol., 4, p. 60-77 (in Rus.)
        • Kerchenskyi (Fe)-ore basin
          • Kerchenskoe deposit
Arbuzov V.A. et al. (1967) Kerch Iron-Ore Basin (Kerchenskii Zhelezorydny Bassein)/ - Moscow:Nedra. - 576 h/ (Rus.)
USA
 
  • Arizona
    • Greenlee Co.
      • Shannon Mts
        • Copper Mountain District (Clifton-Morenci District)
          • Morenci
Merritt Stephen Enders (2000) The Evolution of Supergene Enrichment in the Morenci Porphyry Copper Deposit, Greenlee County, Arizona. PhD Thesis, University of Arizona
    • Mohave Co.
      • Cerbat Mts (Cerbat Range)
        • Wallapai District
          • Mineral Park District
            • Ithaca Peak
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 103; Eidel, J.J., et al (1968), Copper-molybdenum mineralization at Mineral Park, Mohave Co., AZ, in J.D. Ridge (ed.), Ore deposits of the United States, 1933-1967, A,I,M.E.: 1258-1281.
    • Santa Cruz Co.
      • Patagonia Mts
        • Patagonia District
          • Washington Camp-Duquesne District
            • San Antonio Canyon
              • Santo Niño Mine area
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 103.
  • Colorado
    • San Juan Co.
      • Eureka District
Minerals of Colorado (1997) Eckels, E. B.
  • Massachusetts
    • Franklin Co.
      • Rowe
Cerato, A.. 2003: Mineralogical Study of Davis Mine, Rowe, MA, Using X-Ray Diffraction Techniques
  • Minnesota
    • St. Louis Co.
      • Hibbing
J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
  • Nevada
    • Elko Co.
NBMG Spec. Pub. 31 Minerals of Nevada
    • Humboldt Co.
NBMG Spec. Pub. 31 Minerals of Nevada
    • Pershing Co.
      • East Range
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Taos Co.
J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
  • Pennsylvania
    • Chester Co.
      • Malvern Borough
Jan H.Bernard and Jaroslav Hyrsl,2004,Minerals and their Localities,pg 349
  • Tennessee
    • Cocke Co.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
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