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Feroxyhyte

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Thorikos Bay slag locality, Thorikos area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
© 2005 M. Kampf

Show Feroxyhyte Photos (2)
Formula:
Fe
3+
 
O(OH)
System:HexagonalColour:yellow-brown


Compare vernadite.

Classification of Feroxyhyte

IMA status:Approved 1975
Strunz 8th edition ID:4/F.06-60
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:6.1.4.4

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
1 : XO(OH)
Hey's CIM Ref.:7.20.7

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

Type Locality:Kolomyya, Ivanovo-Frankovsk Oblast', Ukraine
Year of Discovery:1976

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:
d-spacingIntensity
2.54 (10)
2.23 (5)
1.69 (3)

Chemical Properties of Feroxyhyte

Formula:
Fe
3+
 
O(OH)
Essential elements:Fe, H, O
All elements listed in formula:Fe, H, O

Relationship of Feroxyhyte to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.FE.05Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
4.FE.05Brucite
Mg(OH)
 
2
4.FE.05Portlandite
Ca(OH)
 
2
4.FE.05Pyrochroite
Mn(OH)
 
2
4.FE.05Theophrastite
Ni(OH)
 
2
4.FE.10Bayerite
Al(OH)
 
3
4.FE.10Doyleite
Al(OH)
 
3
4.FE.10Gibbsite
Al(OH)
 
3
4.FE.10Nordstrandite
Al(OH)
 
3
4.FE.15Böhmite
AlO(OH)
4.FE.15Lepidocrocite
γ-Fe
3+
 
O(OH)
4.FE.20Grimaldiite
CrO(OH)
4.FE.20Heterogenite
CoO(OH)
4.FE.25Feitknechtite
Mn
3+
 
O(OH)
4.FE.25Lithiophorite
(Al,Li)MnO
 
2
(OH)
 
2
4.FE.30Quenselite
PbMnO
 
2
(OH)
4.FE.35Ferrihydrite
Fe
 
5
O
 
3
(OH)
 
9
4.FE.40Vernadite
(Mn
4+
 
,Fe
3+
 
,Ca,Na)(O,OH)
 
2
 · nH
 
2
O
4.FE.45Quetzalcoatlite
Zn
 
6
Cu
 
3
(TeO
 
6
)
 
2
(OH)
 
6
·Ag
 
x
Pb
 
y
Cl
 
x+2y
Related Minerals - Hey's Index Grouping:

- +
7.20.1Wüstite
FeO
7.20.2Magnetite
Fe
2+
 
Fe
3+
2
O
 
4
7.20.3Maghemite
Fe
 
2
O
 
3
7.20.4Hematite
Fe
 
2
O
 
3
7.20.5Goethite
α-Fe
3+
 
O(OH)
7.20.6Akaganeite
β-Fe
3+
 
O(OH,Cl)
7.20.8Lepidocrocite
γ-Fe
3+
 
O(OH)
7.20.9Ferrihydrite
Fe
 
5
O
 
3
(OH)
 
9
7.20.10Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
7.20.11Magnesioferrite
MgFe
3+
2
O
 
4
7.20.12Muskoxite
Mg
 
7
Fe
 
4
O
 
13
·10H
 
2
O
7.20.13Srebrodolskite
Ca
 
2
Fe
 
2
O
 
5
7.20.14Hercynite
FeAl
 
2
O
 
4
7.20.15Brownmillerite
Ca
 
2
(Al,Fe
3+
 
)
 
2
O
 
5

Other Names for Feroxyhyte

Synonyms:
FeroxygiteIMA1975-032
Other Languages:
German:Feroxygit
Russian:Фероксигит
Spanish:Feroxygita

Other Information

Health Warning: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:American Mineralogist: 62: 1057.

Internet Links for Feroxyhyte

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Feroxyhyte in the Natural History Museum (London) online catalogue
  • Feroxyhyte details from Handbook of Mineralogy (PDF)
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    Localities for Feroxyhyte

    Hide Locality List
    The 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. ? 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 (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District slag localities
          • 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
    		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
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • 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
    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.)
    • 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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