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Feroxyhyte

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Formula:
Fe3+O(OH)
System:
Hexagonal
Colour:
yellow-brown
Compare vernadite.

Classification of Feroxyhyte

Approved 1975
4.FE.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
E : Hydroxides with OH, without H2O; sheets of edge-sharing octahedra
6.1.4.4

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
1 : XO(OH)
7.20.7

7 : Oxides and Hydroxides
20 : Oxides of Fe
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First Recorded Occurrence of Feroxyhyte

Year of Discovery:
1975

Physical Properties of Feroxyhyte

Colour:
yellow-brown
Streak:
yellow

Crystallography of Feroxyhyte

Crystal System:
Hexagonal
Cell Parameters:
a = 2.93Å, c = 4.6Å
Ratio:
a:c = 1 : 1.57
Unit Cell Volume:
V 34.20 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
2.54 (10)
2.23 (5)
1.69 (3)
1.47 (8)

Chemical Properties of Feroxyhyte

Formula:
Fe3+O(OH)
Essential elements:
All elements listed in formula:

Relationship of Feroxyhyte to other Species

4.FE.05Amakinite(Fe2+,Mg)(OH)2
4.FE.05BruciteMg(OH)2
4.FE.05PortlanditeCa(OH)2
4.FE.05PyrochroiteMn(OH)2
4.FE.05TheophrastiteNi(OH)2
4.FE.10BayeriteAl(OH)3
4.FE.10DoyleiteAl(OH)3
4.FE.10GibbsiteAl(OH)3
4.FE.10NordstranditeAl(OH)3
4.FE.15BöhmiteAlO(OH)
4.FE.15Lepidocrociteγ-Fe3+O(OH)
4.FE.20GrimaldiiteCrO(OH)
4.FE.20HeterogeniteCoO(OH)
4.FE.25FeitknechtiteMn3+O(OH)
4.FE.25Lithiophorite(Al,Li)MnO2(OH)2
4.FE.30QuenselitePbMnO2(OH)
4.FE.35FerrihydriteFe103+O14(OH)2
4.FE.40Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O
4.FE.45QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y
7.20.1WüstiteFeO
7.20.2MagnetiteFe2+Fe23+O4
7.20.3MaghemiteFe23+O3
7.20.4HematiteFe2O3
7.20.5Goethiteα-Fe3+O(OH)
7.20.6Akaganeiteβ-Fe3+O(OH,Cl)
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 Feroxyhyte

Name in Other Languages:
Simplified Chinese:六方纤铁矿
Spanish:Feroxygita

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 Feroxyhyte

Reference List:
Chukhrov, F.V., Zvyagin, B.B., Gorshkov, A.I., Ermilova, L.P., Korovushkin, V.V., Rudnitskaya, E.S., Yakubovskaya, N.Y. (1976) Feroxyhyte, a new modification of FeO(OH). Izvest. Akad. Nauk SSR, Ser. geol., 5, 5-24 (in Russian).

Fleischer, M., Pabst, A., Mandarino, J.A., Chao, G.Y. (1977) New Mineral Names. American Mineralogist, 62, 1057-1061.

Internet Links for Feroxyhyte

Localities for Feroxyhyte

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.
Arctic Ocean
 
Murdmaa, I.O., Bogdanova, O.Y., Gorshkov, A.I., Novikov, G.V. and Shevchenko, V.P. (2000): Lithology and Mineral Resources 35(6), 594-597.
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.
    • Snake Pit hydrothermal field
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.
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
WALENTA, K. (1997): Neue Mineralfunde von der Grube Clara 7. Folge. - Lapis 22 (11), 37-47; WALENTA, K. (2001): Wolframhaltiger Feroxyhit von der Grube Clara im mittleren Schwarzwald. Aufschluss 52, 51-56.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District slag localities
        • Passa Limani area
Schnorrer-Köhler, G., Standfuss, K. & Standfuss, L. (1985): Neue Schlackenmineralien von Lavrion. Lapis, 10 (5), 13-16; 50.
        • 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
Italy
 
  • Tuscany
    • Livorno Province
      • Piombino
Muenchener Micromounter - Lithothek
Japan
 
  • Honshu Island
    • Tohoku Region
      • Iwate Prefecture
        • Kuji City
          • Yamagata
Nambu & Yoshida (1997) Ganko-Gakkai Kou'en-Youshi, 161.
Pacific Ocean
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Clarion-Clipperton zone
    • Clipperton Island (Ile de Clipperton; Ile de la Passion)
      • USA-4
Wegorzewski A.V., Kuhn T. (2014): The influence of suboxic diagenesis on the formation of manganese nodules in the Clarion Clipperton nodule belt of the Pacific Ocean. Marine Geology, 357, 123-138.
  • East Pacific Rise
    • Juan de Fuca Ridge complex
Novikov, G.V., Vikent’ev, I.V., and Bogdanova, O.Y. (2006): Geology of Ore Deposits 48(4), 304-325.
Russia
 
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
UK
 
  • England
    • Cornwall
      • St Agnes District
        • Crantock
BMS Newsletter 79, March 2010 (http://britishmicromountsociety.homestead.com/Gannell-Smelter.html)
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.)
  • Ivano-Frankivs'k Oblast' (Ivanovo-Frankovsk Oblast')
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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