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Titanomaghemite

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Formula:
Fe(Fe,Ti)2O4
System:
Isometric
Name:
In allusion to its titanium content and relationship to Maghemite.
Occurs as inclusions in hematite in sea-floor basalt (Mid-Atlantic Ridge).


Classification of Titanomaghemite

Approved, 'Grandfathered' (first described prior to 1959), Questionable
4.BB.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations

Chemical Properties of Titanomaghemite

IMA Formula:
Fe(Fe,Ti)2O4
Elements listed in formula:

Crystallography of Titanomaghemite

Crystal System:
Isometric
Class (H-M):
4 3 2 - Gyroidal
Space Group:
P43 3 2

Type Occurrence of Titanomaghemite

Relationship of Titanomaghemite to other Species

4.BB.05ChromiteFe2+Cr2O4
4.BB.05CochromiteCoCr2O4
4.BB.05CoulsoniteFe2+V23+O4
4.BB.05CuprospinelCu2+Fe23+O4
4.BB.05Filipstadite(Mn2+,Mg)2(Sb5+,Fe3+)O4
4.BB.05FrankliniteZnFe23+O4
4.BB.05GahniteZnAl2O4
4.BB.05GalaxiteMn2+Al2O4
4.BB.05HercyniteFe2+Al2O4
4.BB.05JacobsiteMn2+Fe23+O4
4.BB.05ManganochromiteMn2+Cr2O4
4.BB.05MagnesiocoulsoniteMgV2O4
4.BB.05MagnesiochromiteMgCr23+O4
4.BB.05MagnesioferriteMgFe23+O4
4.BB.05MagnetiteFe2+Fe23+O4
4.BB.05Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4
4.BB.05QandiliteMg2(Ti,Fe3+,Al)O4
4.BB.05SpinelMgAl2O4
4.BB.05TrevoriteNiFe23+O4
4.BB.05UlvöspinelFe22+TiO4
4.BB.05VuorelaineniteMn2+V23+O4
4.BB.05ZincochromiteZnCr2O4
4.BB.10HausmanniteMn2+Mn23+O4
4.BB.10HetaeroliteZnMn23+O4
4.BB.10HydrohetaeroliteHZnMn3+5/3O4
4.BB.10IwakiiteMn2+Fe23+O4
4.BB.15MaghemiteFe2.67O4
4.BB.20TegengreniteMg2(Sb,Mn)O4
4.BB.25XieiteFeCr2O4

Other Names for Titanomaghemite

Name in Other Languages:

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 Titanomaghemite

Reference List:
Mineralogical Magazine 31 (1957), 624.

Economic Geology 54 (1959), 698.

Collyer, S., Grimes, N.W., Vaughan, D.J., and Longworth, G. (1988) Studies of the crystal structure and crystal chemistry of titanomaghemite. American Mineralogist: 73: 153-160.

Mineralogical Magazine 53 (1989), 299.

Internet Links for Titanomaghemite

mindat.org URL:
https://www.mindat.org/min-29152.html
Please feel free to link to this page.

Localities for Titanomaghemite

This 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.
Atlantic Ocean
 
Bernard, Jan H. & Jaroslav Hyršl (2004), Minerals and their Localities, Granit, Prague: 608.
India
 
  • Andhra Pradesh
    • Guntur District
Canadian Mineralogist (1965) 8:334-338
Poland
 
  • Upper Silesia (Śląskie)
    • Cieszyn District
Harańczyk C., Mahmood A. & Narębski W. 1971: Titanomaghemite in theralitic teschenite from Pastwiska near Cieszyn (Polish Carpathians). Bull. Acad. Pol. Sc., 19, 4, 223-231.
South Africa (TL)
 
  • Gauteng Province
    • Pretoria District (Tshwane District)
American Mineralogist (1988): 73: 153-160; Mineralogical Magazine 53 (1989), 299
Mineral and/or Locality  
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