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Wüstite

Big Photo

Sikhote-Alin meteorite, Paseka village, Sikhote-Alin Mts, Primorskiy Kray, Far-Eastern Region, Russia
© Pavel M. Kartashov

Formula:
FeO
Colour:BlackHardness:5 - 5½
Name:Named after Ewald Wüst (1875-1934), Geologist and Paleontologist, University of Kiel (Germany).


Periclase Group

Classification of Wüstite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/A.04-20
Nickel-Strunz 10th (pending) edition ID:4.AB.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
B : M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only
Dana 8th edition ID:4.2.1.6

4 : SIMPLE OXIDES
2 : AX
Hey's CIM Ref.:7.20.1

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

Type Locality:Scharnhausen, Ostfildern, Stuttgart, Baden-Württemberg, Germany

Physical Properties of Wüstite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Black
Hardness (Mohs):5 - 5½

Chemical Properties of Wüstite

Formula:
FeO
Essential elements:Fe, O
All elements listed in formula:Fe, O

Relationship of Wüstite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.AB.05Crednerite
CuMnO
 
2
4.AB.10Tenorite
CuO
4.AB.15Delafossite
CuFeO
 
2
4.AB.15Mcconnellite
CuCrO
 
2
4.AB.20Bromellite
BeO
4.AB.20Zincite
(Zn,Mn
2+
 
,Fe
2+
 
)O
4.AB.25Bunsenite
NiO
4.AB.25Lime
CaO
4.AB.25Manganosite
MnO
4.AB.25Monteponite
CdO
4.AB.25Periclase
MgO
4.AB.30Palladinite
PdO
Related Minerals - Hey's Index Grouping:

- +
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)
7.20.7Feroxyhyte
Fe
3+
 
O(OH)
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 Wüstite

Synonyms:
IosidériteIoziteWuestite
Other Languages:
German:Iosiderit
Iozit
Jozite
Wuestit
Wüstit
Russian:Вюстит
Spanish:Iosidérita
Iozita
Wuestita
Wüstita

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 Wüstite

Reference List:Brun (1924), Arch. sc. phys. nat.: 6: 253 (as Iozite).

Brun (1924), C.R. soc. phys. hist. nat. Genève: 41: 94.

Brun (1924), Schweiz. min. Mitt.: 4: 355.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 503 (as Iozite).

Walenta, K. (1960) Natürliches Eisen(II)-Oxyd (Wüstite) aus der vulkanischen Tuffbreccie von Scharnhausen bei Stuttgart. Neues Jahrbuch für Mineralogie, Monatshefte (1960): 150-159 (in German with English abstracts).

Yamamoto, A. (1982) Modulated structure of wüstite (Fe1-xO)(Three dimensional modulation). Acta Crystallographica (1982): B38: 1451-1456.

Hazen, R.M. and Jeanloz, R. (1984) Wüstite (Fe1-xO): a review of its defect structure and physical properties. Reviews in Geophysics: 22: 37-46.

Stølen, S., Glöckner, R., Grønvold, F., Atake, T., and Izumisawa, S. (1996) Heart capacity and nearly stoichiometric wüstite from 13 to 450 K. American Mineralogist: 81: 973-981.

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    Localities for Wüstite

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