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Feroxyhyte

Big Photo

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

Formula:
Fe
3+
 
O(OH)
System:HexagonalColour:yellow-brown
This page provides mineralogical data about Feroxyhyte.

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

Co-type Localities:Pacific Ocean
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)

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
German names:
Feroxygit
Russian names:
Фероксигит
Spanish names:
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

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    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.
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    (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.
    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
     
    Russia
     
    Ukraine
     
    • Ivanovo-Frankovsk Oblast'
    Mineral and/or Locality
    Google
     
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