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Ferropseudobrookite

A valid IMA mineral species
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About FerropseudobrookiteHide

Known as exsolution lamellae in terrestrial minerals, from meteorite chondrules, and as an abundant constituent of slag from smelting Ti-rich magnetite sands.


Unique IdentifiersHide

Mindat ID:
40282
Long-form identifier:
mindat:1:1:40282:4

IMA Classification of FerropseudobrookiteHide

Approved
Approval history:
IMA 25-A –Ferropseudobrookite (approval), armalcolite (redefinition), pseudobrookite group (establishment)

Classification of FerropseudobrookiteHide

4.CB.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations

Chemistry of FerropseudobrookiteHide

Mindat Formula:
Fe2+Ti4+2O5
Element Weights:
Element% weight
Ti41.340 %
O34.545 %
Fe24.115 %

Calculated from ideal end-member formula.

Crystallography of FerropseudobrookiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Cmcm
Setting:
Cmcm
Cell Parameters:
a = 9.8 Å, b = 3.7 Å, c = 10.0 Å
Ratio:
a:b:c = 2.649 : 1 : 2.703
Unit Cell V:
362.60 ų (Calculated from Unit Cell)

Type Occurrence of FerropseudobrookiteHide

Place of Conservation of Type Material:
neotype from Disko Island, Greenland, sample 176486, Natural History Museum of Denmark
lunar cotypes for ferropseudobrookite include the samples: 10022,37; 10071,28; 70017,125; 70215,152; 71569,54; and 74275,91; these are accessioned and stored in the Apollo lunar sample collection of the Lunar Sample Laboratory Facility at the NASA Johnson Space Center.

Other Language Names for FerropseudobrookiteHide

Relationship of Ferropseudobrookite to other SpeciesHide

Other Members of Pseudobrookite Group:
ArmalcoliteMgTi4+2O5Orth. mmm(2/m2/m2/m)
GriffiniteAl2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
PseudobrookiteFe3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
SassiteTi3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm

Related Minerals - Strunz-mindat GroupingHide

4.CB.Magnesiohögbomite-6N12SMg5Al11TiO23(OH)Trig. 3m(32/m) : R3m
4.CB.KidoditeBaMg2Fe16O27Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CB.Ferrohögbomite-2N2S[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2Hex. 6mm : P63mc
4.CB.Zhenruite(MoO3)2 · H2OMon. 2/m : P21/m
4.CB.FuyuaniteMg7Nb6O18(OH)8Trig. 3 : P3
4.CB.VirgilluethiteMoO3 · H2OMon. 2/m : P21/b
4.CB.Pengite(Pb8Sb3+3)Σ11Sb5+9O35Trig. 3m(32/m) : R3m
4.CB.05BrizziiteNaSb5+O3Trig. 3 : R3
4.CB.05TistariteTi3+2O3Trig. 3m(32/m) : R3c
4.CB.05HematiteFe2O3Trig. 3m(32/m) : R3c
4.CB.05EcandrewsiteZnTiO3Trig. 3 : R3
4.CB.05MelanostibiteMn2+2Fe3+Sb5+O6Trig. 3 : R3
4.CB.05'UM1998-11-O-AuHSb'Au+2Sb3+O2(OH)
4.CB.05KarelianiteV3+2O3Trig. 3m(32/m) : R3c
4.CB.05CorundumAl2O3Trig. 3m(32/m) : R3c
4.CB.05EskolaiteCr2O3Trig. 3m(32/m) : R3c
4.CB.05GeikieliteMgTiO3Trig. 3 : R3
4.CB.05AkimotoiteMgSiO3Trig. 3 : R3
4.CB.05'Unnamed (Fe-Cr Oxide)'FeCrO3Trig. 3 : R3
4.CB.05'Auroantimonate'AuSbO3
4.CB.05HemleyiteFe2+SiO3Trig. 3 : R3
4.CB.05IlmeniteFe2+TiO3Trig. 3 : R3
4.CB.05PyrophaniteMn2+TiO3Trig. 3 : R3
4.CB.10Bixbyite-(Fe)(Fe,Mn)2O3Iso.
4.CB.10Bixbyite-(Mn)Mn3+2O3Iso. m3(2/m3) : Ia3
4.CB.10AvicenniteTl3+2O3Iso. m3(2/m3) : Ia3
4.CB.15ArmalcoliteMgTi4+2O5Orth. mmm(2/m2/m2/m)
4.CB.15GriffiniteAl2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15Pseudobrookite Group
4.CB.15SassiteTi3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15PseudobrookiteFe3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.20Zincovelesite-6N6SZn3(Fe3+,Mn3+,Al,Ti)8O15(OH)Trig. 3m(32/m) : P3m1
4.CB.20Magnesiohögbomite-2N4S(Mg8.43Fe2+1.57)Σ=10Al22Ti4+2O46(OH)2Hex. 6mm : P63mc
4.CB.20Magnesiobeltrandoite-2N3S(Mg6Al2)(Al18Fe3+2)O38(OH)2 Trig. 3m : P3m1
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2Hex. 6mm : P63mc
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2Trig. 3m(32/m) : P31m
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2Hex. 6mm : P63mc
4.CB.20'Ferrohögbomite-6N12S'[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2Hex. 6mm : P63mc
4.CB.25KleberiteFeTi6O11(OH)5Mon. 2/m : P21/b
4.CB.25PseudorutileFe3+2Ti4+3O9Hex. 622 : P6322
4.CB.30OxyvaniteV3+2V4+O5Mon. 2/m : B2/b
4.CB.30BerdesinskiiteV3+2TiO5Mon.
4.CB.30KaitianiteTi3+2Ti4+O5Mon. 2/m : B2/b
4.CB.35MachiiteAl2Ti3O9Mon. 2/m : B2/b
4.CB.35Vestaite(Ti4+Fe2+)Ti4+3O9Mon. 2/m : B2/b
4.CB.35Olkhonskite(Cr,V)2Ti3O9Mon.
4.CB.35SchreyeriteV3+2Ti4+3O9Mon. 2/m : B2/b
4.CB.40Zincorinmanite-(Zn)Zn2Sb2(Fe3+4Zn2)O14(OH)2Hex. 6mm : P63mc
4.CB.40MajindeiteMg2Mo3O8Hex. 6mm : P63mc
4.CB.40AlmagreraiteCuZnMn4+3O8Orth. mm2 : Pmn21
4.CB.40KamiokiteFe2Mo3O8Hex. 6mm : P63mc
4.CB.40NolaniteV3+8Fe3+2O14(OH)2Hex. 6mm : P63mc
4.CB.40IseiteMn2Mo3O8Hex. 6mm : P63mc
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2Hex. 6 : P63
4.CB.45StibioclaudetiteAsSbO3Mon. 2/m : P21/m
4.CB.45ClaudetiteAs2O3Mon. 2/m
4.CB.50SenarmontiteSb2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.50ArsenoliteAs2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.55ValentiniteSb2O3Orth. mmm(2/m2/m2/m) : Pccn
4.CB.60BismiteBi2O3Mon. 2/m : P21/b
4.CB.65SphaerobismoiteBi2O3Tet.
4.CB.70SilléniteBi12SiO20Iso. 23 : I23
4.CB.75KyzylkumiteV3+Ti2O5(OH)Mon. 2/m : P21/b
4.CB.80'Tietaiyangite'Fe3+4Fe2+TiO9Hex.
4.CB.85LiuiteFeTiO3Orth. mmm(2/m2/m2/m) : Pnma
4.CB.90LuogufengiteFe2O3Orth. mm2 : Pna21
4.CB.95WangdaodeiteFeTiO3Trig. 3m : R3c

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for FerropseudobrookiteHide

References for FerropseudobrookiteHide

Localities for FerropseudobrookiteHide

Showing 13 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Antarctica
 
  • East Antarctica
    • Enderby Land
Akira MIYAKE et al. (2007)
    • Victoria Land
      • Allan Hills
Fujimaki Hirokazu (1981)
Greenland (TL)
 
  • Qeqertalik
Bosi et al. (2026)
Madagascar
 
  • Betsiboka
    • Tsaratanàna District
      • Bekapaika Commune
- (2021)
Mongolia
 
  • Dornogovi Province
    • Erdene District
Peretyazhko et al. (2024)
Nigeria
 
  • Bauchi
    • Ningi
      • Kalato
Sakoma et al. (2002)
Russia
 
  • Buryatia
    • Baunt District
Doroshkevich et al. (2007)
    • Ulan-Ude
Ripp et al. (2019)
Spain
 
  • Murcia
    • Cartagena
      • La Aljorra
Kazheva et al. (2021)
Ukraine
 
  • Donetsk Oblast
    • Volnovakha Raion
Sharygin et al. (2011)
  • Kirovohrad Oblast
Cuney et al. (2012)
The Moon (TL)
 
  • Mare Tranquillitatis (Sea of Tranquility)
Locock et al. (2026)
  • Taurus-Littrow Valley
Locock et al. (2026)
 
and/or  
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