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Pseudobrookite

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Formula:
Fe
 
2
TiO
 
5
System:OrthorhombicColour:Brownish black, reddish ...
Lustre:Adamantine, Greasy, MetallicHardness:6
Name:From the Greek ψευδής, false, and brookite since its resemblance to brookite is misleading.
Dimorph of:Unnamed (Monoclinic polymorph of Pseudobrookite)

Classification of Pseudobrookite

IMA status:Approved
Strunz 8th edition ID:4/C.24-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:7.7.1.1

7 : MULTIPLE OXIDES
7 : AB2X5
Hey's CIM Ref.:7.9.16

7 : Oxides and Hydroxides
9 : Oxides of Ti
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Type Occurrence of Pseudobrookite

Type Locality:Uroi Hill (Arany Hill), Simeria, Hunedoara Co., Romania
Year of Discovery:1878

Occurrences of Pseudobrookite

Geological Setting:Magmatic, post-volcanic or young volcanic rocks

Physical Properties of Pseudobrookite

Lustre:Adamantine, Greasy, Metallic
Colour:Brownish black, reddish brown, or black
Streak:Brown
Hardness (Mohs):6
Cleavage:Distinct/Good
On {010}.
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):4.33 - 4.39 g/cm3
Density (calculated):4.39 g/cm3

Crystallography of Pseudobrookite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 9.81Å, b = 9.95Å, c = 3.73Å
Ratio:a:b:c = 0.986 : 1 : 0.375
Unit Cell Volume:V 364.08 ų (Calculated from Unit Cell)
Morphology:Crystals usually tabular {100} and elongated [001]; long prismatic at times or needle-like [001]. {100} and hk0} striated [001].
Twinning:Reported on various {hk0} planes (doubtful).
Crystal Atlas:
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Pseudobrookite no.1 - Goldschmidt (1913-1926)
Pseudobrookite no.7 - Goldschmidt (1913-1926)

About Crystal Atlas

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. The 3d models and HTML5 code are kindly provided by www.smorf.nl.

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Epitaxi Comments:Pseudobrookite on hematite with pseudobrokite {121}[21¯0] parallel to hematite {0001}[1¯100].
Pseudobrookite on magnetite with pseudobrookite {100}[001] parallel to magnetite {111}[110].
Oriented inclusions of rutile in pseudobrookite.

Optical Data of Pseudobrookite

Type:Biaxial (+)
RI values: nα = 2.350 nβ = 2.390 nγ = 2.420
2V:Measured: 50° , Calculated: 80°
Maximum Birefringence:δ = 0.070

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:none

Chemical Properties of Pseudobrookite

Formula:
Fe
 
2
TiO
 
5
Simplified for copy/paste:Fe2TiO5
Essential elements:Fe, O, Ti
All elements listed in formula:Fe, O, Ti

Relationship of Pseudobrookite to other Species

Series:Forms a series with Armalcolite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
4.CB.05Brizziite
NaSb
5+
 
O
 
3
4.CB.05Corundum
Al
 
2
O
 
3
4.CB.05Ecandrewsite
(Zn,Fe
2+
 
,Mn
2+
 
)TiO
 
3
4.CB.05Eskolaite
Cr
 
2
O
 
3
4.CB.05Geikielite
MgTiO
 
3
4.CB.05Hematite
Fe
 
2
O
 
3
4.CB.05Ilmenite
Fe
2+
 
TiO
 
3
4.CB.05Karelianite
V
3+
2
O
 
3
4.CB.05Melanostibite
Mn
2+
 
(Sb
5+
 
,Fe
3+
 
)O
 
3
4.CB.05Pyrophanite
Mn
2+
 
TiO
 
3
4.CB.05Akimotoite
(Mg,Fe
2+
 
)SiO
 
3
4.CB.05Auroantimonate
AuSbO
 
3
4.CB.05Romanite
(◻,Pb,Ca)UFe
2+
2
(Ti,Fe
3+
 
)
 
6
Ti
 
12
O
 
38
4.CB.05UM1998-11-O-AuHSb
Au
+
2
Sb
3+
 
O
 
2
(OH)
4.CB.05Tistarite
Ti
3+
2
O
 
3
4.CB.10Avicennite
Tl
 
2
O
 
3
4.CB.10Bixbyite
Mn
3+
2
O
 
3
4.CB.15Armalcolite
(Mg,Fe
2+
 
)Ti
 
2
O
 
5
4.CB.20Zincohögbomite-2N2S
[(Zn,Al,Fe
2+
 
)
 
3
(Al,Fe
3+
 
,Ti)
 
8
O
 
15
(OH)]
 
2
4.CB.20Zincohögbomite-2N6S
[(Zn,Mg)
 
7
(Al,Fe
3+
 
,Ti)
 
16
O
 
31
(OH)]
 
2
4.CB.20Magnesiohögbomite-6N6S
[(Mg,Fe
2+
 
)
 
3
(Al,Ti,Fe
3+
 
)
 
8
O
 
15
(OH)]
 
6
4.CB.20Magnesiohögbomite-2N3S
[(Mg,Fe
2+
 
,Zn)
 
4
(Al,Ti,Fe
3+
 
)
 
10
O
 
19
(OH)]
 
2
4.CB.20Magnesiohögbomite-2N2S
[(Mg,Fe
2+
 
)
 
3
[Al
 
7
(Ti,Fe
3+
 
)]O
 
15
(OH)]
 
2
4.CB.20Ferrohögbomite-6N12S
[(Fe
2+
 
,Mg,Zn)
 
5
(Al,Ti,Fe
3+
 
)
 
12
O
 
23
(OH)]
 
6
4.CB.25Pseudorutile
Fe
 
2
Ti
 
3
O
 
9
4.CB.25Kleberite
FeTi
 
6
O
 
11
(OH)
 
5
4.CB.30Berdesinskiite
V
3+
2
TiO
 
5
4.CB.30Oxyvanite
V
3+
2
V
4+
 
O
 
5
4.CB.35Olkhonskite
(Cr,V)
 
2
Ti
 
3
O
 
9
4.CB.35Schreyerite
V
3+
2
Ti
 
3
O
 
9
4.CB.40Kamiokite
Fe
 
2
Mo
 
3
O
 
8
4.CB.40Nolanite
(V
3+
 
,Fe
3+
 
,Fe
2+
 
,Ti)
 
10
O
 
14
(OH)
 
2
4.CB.40Rinmanite
Zn
 
2
Sb
 
2
Mg
 
2
Fe
 
4
O
 
14
(OH)
 
2
4.CB.40Iseite
Mn
 
2
Mo
 
3
O
 
8
4.CB.40Majindeite
Mg
 
2
Mo
 
3
O
 
8
4.CB.45Claudetite
As
 
2
O
 
3
4.CB.45Stibioclaudetite
AsSbO
 
3
4.CB.50Arsenolite
As
 
2
O
 
3
4.CB.50Sénarmontite
Sb
 
2
O
 
3
4.CB.55Valentinite
Sb
 
2
O
 
3
4.CB.60Bismite
Bi
 
2
O
 
3
4.CB.65Sphaerobismoite
Bi
 
2
O
 
3
4.CB.70Sillénite
Bi
 
12
SiO
 
20
4.CB.75Kyzylkumite
Ti
 
2
V
3+
 
O
 
5
(OH)
4.CB.80Tietaiyangite
Fe
3+
4
Fe
2+
 
TiO
 
9
Related Minerals - Hey's Index Grouping:

- +
7.9.1Hongquiite
TiO
7.9.2Rutile
TiO
 
2
7.9.3Anatase
TiO
 
2
7.9.4Brookite
TiO
 
2
7.9.5Geikielite
MgTiO
 
3
7.9.6Perovskite
CaTiO
 
3
7.9.7Kassite
CaTi
 
2
O
 
4
(OH)
 
2
7.9.8Tausonite
SrTiO
 
3
7.9.9Crichtonite
(Sr,La,Ce,Y)(Ti,Fe
3+
 
,Mn)
 
21
O
 
38
7.9.10Lucasite-(Ce)
CeTi
 
2
(O,OH)
 
6
7.9.11Hibonite
(Ca,Ce)Al
 
12
O
 
19
7.9.12Yttrocrasite-(Y)
(Y,Th,Ca,U)(Ti,Fe)
 
2
(O,OH)
 
6
7.9.13Pyrophanite
Mn
2+
 
TiO
 
3
7.9.14Iwakiite
Mn(Fe,Mn)
 
2
O
 
4
7.9.15Ilmenite
Fe
2+
 
TiO
 
3
7.9.17Ulvöspinel
Fe
 
2
TiO
 
4
7.9.18Pseudorutile
Fe
 
2
Ti
 
3
O
 
9
7.9.19Freudenbergite
Na
 
2
(Ti,Fe)
 
8
O
 
16
7.9.20Kennedyite
MgFe
3+
2
Ti
 
3
O
 
10
7.9.21Armalcolite
(Mg,Fe
2+
 
)Ti
 
2
O
 
5
7.9.22Högbomite
(Mg,Fe)
 
2
(Al,Ti)
 
5
O
 
10
7.9.23Qandilite
(Mg,Fe)
 
2
(Ti,Fe,Al)O
 
4
7.9.24Cafetite
(Ca,Mg)(Fe,Al)
 
2
Ti
 
4
O
 
12
· 4H
 
2
O
7.9.25Loveringite
(Ca,Ce,La)(Zr,Fe)(Mg,Fe)
 
2
(Ti,Fe,Cr,Al)
 
18
O
 
38
7.9.26Lindsleyite
(Ba,Sr)(Zr,Ca)(Fe,Mg)
 
2
(Ti,Cr,Fe)
 
18
O
 
38
7.9.27Priderite
K(Ti
4+
7
Fe
3+
 
)O
 
16
7.9.28Jeppeite
(K,Ba)
 
2
(Ti,Fe)
 
6
O
 
13
7.9.29Ankangite
Ba(Ti,V
3+
 
,Cr)
 
8
O
 
16
7.9.30Ecandrewsite
(Zn,Fe
2+
 
,Mn
2+
 
)TiO
 
3
7.9.31Landauite
NaMnZn
 
2
(Ti,Fe)
 
6
Ti
 
12
O
 
38

Other Names for Pseudobrookite

Other Languages:
German:Pseudobrookit
Russian:Псевдобрукит
Simplified Chinese:假板钛矿
铁板钛矿
Spanish:Pseudobrookita

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 Pseudobrookite

Reference List:

- +
Koch, A. (1878): "XXII. Neue Minerale aus dem Andesit des Aranyer Berges in Siebenbürgen", Tschermaks Mineralogische und Petrographische Mitteilungen 1, Neue Folge, 331-361.

Pauling (1930) Zeitschrift für Kristallographie: 73: 97.

Palache, C. (1934), American Mineralogist: 19: 14.

Palache, C. (1935), American Mineralogist: 20: 660.

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: 736-738.

Bowles, J.F. (1988) Definition and range of composition of naturally occurring minerals with the pseudobrookite structure. American Mineralogist (1988): 73: 1377.

Internet Links for Pseudobrookite

Search Engines:
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  • External Links:
  • Look for Pseudobrookite on Webmineral
  • Look for Pseudobrookite on Athena Mineralogy
  • Look for Pseudobrookite on Wikipedia
  • Look for Pseudobrookite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Pseudobrookite details from Handbook of Mineralogy (PDF)
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  • Specimens:The following Pseudobrookite specimens are currently listed for sale on minfind.com.

    Localities for Pseudobrookite

    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.
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mtn (Hoggar Mtn)
        • Laouni
    J.P. Lorand and J.Y. Cottin, Bull. Minéral. , 1987, 110, pp. 373-378.
    Australia
     
    • Victoria
      • City of Greater Geelong
        • Anakie
    W. D. Birch et al, Australian Journal of Mineralogy (in press)
    Museum Victoria Mineralogy Collection
    Museum Victoria Mineralogy Collection
      • Moyne Shire
        • Mortlake
    U. Kolitsch (SXRD); Birch, W. D., Wood, A., White, A. J. R., Mills, S. J. and Freeman, R. (2008): Aegirine-augite crystals in scoria from Mt Shadwell and Mt Anakie, Victoria, Australia. Australian Journal of Mineralogy 14, 37-42.
    Austria
     
    • Burgenland
      • Oberpullendorf
        • Kobersdorf
          • Pauliberg
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993); U. Kolitsch, W. Postl, H.-P. Bojar and W. Trattner (2009): Die Mineralvorkommen im Basalt des Pauliberges. In: Autorenkollektiv (Red. M. A. Götzinger und P. Huber) (2009): Die Mineralien des Burgenlandes - Geologie, Mineralogie und mineralische Rohstoffe. – Wissenschaftliche Arbeiten aus dem Burgenland, Band 126, Amt der Burgenländischen Landesregierung, Abteilung 7 - Landesmuseum, Eisenstadt, 83-99.
    • Styria
      • Bad Radkersburg
        • Klöch
    "Aus der Tiefe der Vulkane", Fritz-Jandl-Postl (2011)
      • Graz
        • Wildon
          • Weitendorf
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Tyrol
      • East Tyrol
        • Virgen valley
          • Prägraten
            • Dorferbach valley
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Brazil
     
    • Paraná
      • Foz do Iguaçu
    Geological Survey Professional Paper 327 (U.S. Department of the Interior, 1959)
    Bulgaria
     
    • Pazardzhik Oblast (Pazardjik Oblast)
      • Panagyurishte (Panagurishte) Obshtina
        • Panagyurishte
    Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155
    Chile
     
    • Atacama Region
      • Huasco Province
        • Freirina
          • Sierra La Totora district
    Bournat C. (1974); "Estudios geológico del sector de Freirina; UN, Chile.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Třebíč
    Novák, M. & Škoda, R. (2007): Mn3+-rich andalusite to kanonaite and their breakdown products from metamanganolite at Kojetice near Třebíč, the Moldanubian Zone, Czech Republic. Journal of Geosciences, 52(1-2), 161-167.
    Finland
     
    • Northern Finland Region
      • Pudasjärvi
    Karinen, Tuomo 2010. The Koillismaa intrusion northeasten Finland - evidence for PGE reef forming processes in the layered series. Geological Survey of Finland Bulletin 404
    France
     
    • Auvergne
      • Haute-Loire
        • Le Puy-en-Velay
          • Espaly-Saint-Marcel
    Barrier D, Pourtier G, Médard P (2004) Minéralogie du mont Denise (Haute-Loire). Le Cahier des Micromonteurs 83: 3-11.
        • Solignac-sur-Loire
          • Le Brignon
    P & E Médard collection
      • Puy-de-Dôme
        • Besse-et-Saint-Anastaise
          • Murol
    Queneau Patrice collection
    hède
        • Mazaye
    Philippe Rémy collection
        • Pontgibaud
          • Saint-Ours-les-Roches
    Vernay, R. (1996) - Le Puy de Lemptégy, Le Cahier des Micromonteurs, (1), 12-17.
    Mboungou-Kongo J.B. (2002), L'hématite spéculaire du puy de Tunisset, Chaîne des Puys (Puy de Dôme), Le Régne Minéral, n°46, pp: 51-55
        • Rochefort-Montagne
          • Le Mont-Dore
    A. Lacroix (1905) Minéralogie de la France
    Germany
     
    • Baden-Württemberg
      • Odenwald
        • Eberbach
          • Katzenbuckel
    Stahle, V., Koch, M., McCammon, C. A., Mann, U. & Markl, G. (2002): Occurrence of low-Ti and high-Ti freudenbergite in alkali syenite dikes from the Katzenbuckel volcano, southwestern Germany. Canadian Mineralogist 40, 1609-1627.
    • North Rhine-Westphalia
      • Aachen
        • Stolberg
    Blaß, G. & Graf, H. W. (1995): Neufunde von Schlackenhalden in der nördlichen Eifel (II). Mineralien-Welt, 6 (3), 28-31.
    International Association of Collectors of Slag Minerals, 9 (3), 3-6
      • Eifel
        • Mechernich
          • Kall
    Blaß, G. & Graf, H. W. (1995): Neufunde von Schlackenhalden in der nördlichen Eifel (II). Mineralien-Welt, 6 (3), 28-31.
    • Rhineland-Palatinate
      • Eifel
        • Andernach
          • Eich
    Hentschel, G., Die Mineralien der basaltischen Gesteine im Laacher Vulkangebiet, Der Aufschluß, Heft 2, 1975
          • Kruft
    Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
          • Nickenich
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
        • Bad Breisig
          • Brohl-Lützing (Niederlützingen)
    Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
        • Daun
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 2. Auflage) 1987
          • Oberstadtfeld
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München (2. Auflage), 1987
          • Strohn
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Üdersdorf
    Schäfer, H., Die Mineralien der Einschlüsse und Auswürflinge in den Schlacken des Emmelberges bei Üdersdorf / Eifel, Der Aufschluss 30, 273-282, 1979
    Guth, G., Interessante Neufunde für den Basaltbruch Liley (Löley) bei Üdersdorf in der Westeifel Mineralien-Welt 2/2000
        • Gerolstein
          • Roth
    Blaß, G. & Schüller, W. (2012): Der Rother Kopf in der Vulkaneifel. Lapis, 37 (3), 20-29.
    Hentschel, G.(1987): Die Mineralien der Eifelvulkane, Weise Verlag München, 2. Auflage
        • Hillesheim
    Hentschel, G., Die Lavaströme der Graulai: eine neue Fundstelle in der Westeifel, Lapis, Weise Verlag München, 09/1993
          • Oberbettingen
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, (2. Auflage), 1987
          • Walsdorf
    Hentschel, G.(1987): Die Mineralien der Eifelvulkane, Weise Verlag München, 2. Auflage
        • Kelberg
          • Drees
    Schüller, W., Die Mineralien des Niveligsberges bei Drees in der Eifel, Der Aufschluß SB 33, 1990
        • Laach lake volcanic complex
          • Kruft
    Blass, G., Graf, H.W., Kolitsch,U., Neue Funde aus der Vukaneifel, Mineralien-Welt 5/2003
          • Mendig
            • Niedermendig
    Blass, G., Graf, H.W., Kolitsch,U., Neue Funde aus der Vukaneifel, Mineralien-Welt 5/2003
    Blass, G., Graf, H.W., Kolitsch,U., Neue Funde aus der Vukaneifel, Mineralien-Welt 5/2003
              • Wingertsberg
    Blass, G., Graf, H.W., Kolitsch,U., Neue Funde aus der Vulkaneifel, Mineralien-Welt 5/2003
        • Manderscheid
          • Bettenfeld
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Mayen
          • Ettringen
            • Bellerberg volcano
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise (München), 1983
          • Hochsimmer volcano
            • St Johann
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Mendig
          • Bell
    Hentschel, G., Die Mineralien der basaltischen Gesteine im Laacher Vulkangebiet, Der Aufschluß, Heft 2, 1975
          • Niedermendig
            • Wingertsberg
    collection C.&H. Schäfer
        • Niederzissen
          • Burgbrohl
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
          • Wassenach
    Hentschel, G., Die Mineralien der basaltischen Gesteine im Laacher Vulkangebiet, Der Aufschluß, Heft 2, 1975
        • Polch
          • Ochtendung
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Lapis 1988(7+8), 70-72
        • Ulmen
          • Utzerath
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Thuringia
      • Gera
        • Ronneburg U deposit
    T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
      • Meiningen
    Schüller, A. (1953): Contributions to Mineralogy and Petrology 3(6), 472-494.
    Greece
     
    • Macedonia Department
      • Kozáni Prefecture
        • Kozáni and Grevena prefectures border area
          • Vourinos Mt ophiolite complex
    No reference listed
    www.mineralogicalassociation.ca/doc/abstracts/cm5_Vol36_Oct98.pdf.
    Hungary
     
    • Nógrád Co.
      • Mátra Mtns
        • Mátrakeresztes
    Italy
     
    • Aosta Valley
      • Bard
    Ch. Wagner and D. Velde, Bull. Minéral. , 1985, 108, pp. 173-187.
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
    Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI
    • Latium
      • Viterbo Province
        • Piansano
    Burli, M., Nizi, L., Pucci, R., Signoretti, E (2010): Mullite et Cordierite nella cava di Cellere (VT), Il Cercapietre , 1-2 / 2010, pp. 41-48
        • Vico Lake
    No reference listed
    • Sardinia
      • Oristano Province
        • Mt. Arci
          • Marrubiu
    - G.Conti-Vecchi, P. Stara,: (1991) "I Minerali della Sardegna" STEF S.p.A. Cagliari pp.176
    Bortolozi G. (1986) - Mullite e Pseudobrookite del M. Arci (Or) - Riv. Mineral. Ital. , Milano, Fasc. 3, pag. 136
    • Sicily
      • Catania Province
        • Etna Volcanic Complex
          • Biancavilla
    Gianfagna, A. & Oberti, R.(2001): Fluoro-edenite from Biancavilla (Catania, Sicily, Italy): crystal chemistry of a new amphibole end-member. American Mineralogist, 86, 1489-1493. - Sicurella, G., Ciriotti, M.E., Gianfagna, A., Mazziotti-Tagliani, S., Blass, G. (2010): Minerali di Monte Calvario, Biancavilla (Catania, Sicilia). Micro (località), 2/2010, 329-368.
    • Veneto
      • Padova Province
        • Euganei Hills
    "Giorgio Bortolozzi (visual identification)"
      • Vicenza Province
        • Altissimo
    Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
        • Selva di Trissino
    Daleffe, A., Rigoni M., M.T. (2000): Pseudobrookite di Monte Faldo, Selva di
        • Trissino
          • Faldo Mt.
    M. Boscardin (2002): " Presenze Mineralogiche significative nei Lessini Vicentini - Studi e Ricerche- Associazione Amici del Museo- Museo Civico "G. Zannato" Montecchio Maggiore (VI). 15 Dicembre 2002, pp. 49-56.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Mt Uzumine (Utsumine)
    Nakajima & Kurosawa (2006), Canadian Mineralogist: 44: 40.
    Mexico
     
    • Durango
      • Mun. de Coneto de Comonfort
        • América-Sapioris District (Potrillos)
          • Sierra de San Francisco
            • Potrillos
    Panczner(1987): 305.
      • Mun. de Durango
        • Cerro de los Remedios
          • Victoria de Durango
    "Rock-magnetism and ore microscopy of the magnetite-apatite ore deposit from Cerro de Mercado, Mexico" Earth Planets Space, 53, 181–192, 2001
    • Guanajuato
      • Mun. de San Felipe
        • San Felipe
    Panczner (1987): 305.
    New Zealand
     
    • North Island
      • Bay of Plenty
        • Rotorua
          • Mt Ngongotaha
    Martin Stolworthy Collection
    Norway
     
    • Telemark
      • Bamble (Bamle)
        • Havredal (Hafredal)
          • Midtre Havredal
    Brøgger, W.C. (1888): Om en norsk forekomst af pseudobrookit i store krystaller. Geol.Fören. Förhandl.Stockholm 10: 21-24; Smith, D.G.W. (1969): Contributions to the Mineralogy of Norway No.42. A reinvestigation of the pseudobrookite from Havredal (Bamble), Norway. Norsk Geologisk Tidsskrift: 49: 284-288.
    Portugal
     
    • Faro District
      • Loulé
    Pedro Alves collection
    Romania
     
    • Covasna Co.
    Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
    • Hunedoara Co.
      • Simeria
    Koch, 1878; König et al., 2001
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
    Victor V. Sharygin analytycal data (2012)
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
          • Great Fissure eruption (Main Fracture)
            • Northern Breakthrough (North Breach)
              • Second scoria cone
    Pekov, I. V., Zelenski, M. E., Zubkova, N. V., Yapaskurt, V. O., Chukanov, N. V., Belakovskiy, D. I., & Pushcharovsky, D. Y. (2012). Calciolangbeinite, K2Ca2 (SO4) 3, a new mineral from the Tolbachik volcano, Kamchatka, Russia. Mineralogical Magazine, 76(3), 673-682.
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
    Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
    Slovakia
     
    • Prešov Region
      • Vranov nad Topľou Co.
    Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
    South Africa
     
    • Limpopo Province
    Minerals of South Africa
    Spain
     
    • Aragón
      • Huesca
        • Estopiñán del Castillo
    B. Azambre et al. , Bull. Minéral; , 1987, 110, pp. 379-396.
        • Sopeira
    B. Azambre et al. , Bull. Minéral; , 1987, 110, pp. 379-396.
    • Canary Islands
      • Las Palmas Province
        • Gran Canaria (Grand Canary)
          • Las Palmas de Gran Canaria
    Alex Hansen Machín (2009). Volcanología y geomorfología de la etapa de rejuvenecimiento plio-pleistocena de Gran Canaria (Islas Canarias). Tesis doctoral. Personally collected in January 2013
    • Cantabria
      • Santander
    B. Azambre et al. , Bull. Minéral; , 1987, 110, pp. 379-396.
    • Castile-La Mancha
      • Albacete
        • Hellín
          • Cancarix
    E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    • Murcia
      • Cartagena
        • La Aljorra
    Sevillano, G. C., Viñals,J., Rebollar, M.C (2009): Minerales de las Vesículas de las Rocas Lamproíticas del afloramiento de La Aljorra (Murcia). Macla (11), 43-44
      • Jumilla
        • La Celia
    - Lewis,W.J. (1883) Mineralogische Notizen 1. Pseudobrookit - Zeitschrift für Kristallographie und Mineralogie,7, 181-182
    Tanzania
     
    • Dodoma Region
      • Kongwa
    Mineralogical Magazine 1963 33 : 635-645
    UK
     
    • Scotland
      • Strathclyde (Argyllshire)
        • Isle of Mull
          • Loch Scridain
    J.Ralph 2007
    Am Min 50:1982-2022
    USA
     
    • Arizona
        • Big Lue Mountains (Big Laue Mountain)
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 402.
      • Pima Co.
        • Ajo District
          • Little Ajo Mts
            • Ajo area
              • Batamote Mts
    Data provided by Janet Clifford, Cleveland Micromineral Symposium
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 336.
      • Pinal Co.
        • Dripping Spring Mts
          • Saddle Mountain District
            • Winkelman area
              • Saddle Mountain area
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 336, 376, 399; White, Jr., J.S. (1992), An occurrence of bixbyite, spessartine, topaz and pseudobrookite from Ash Creek near Hayden, AZ, Min.Rec.: 23: 487-492.
        • Hayden
    MinRecord 23:487-492
    • Arkansas
    Jay Ellis Ransom,1974, Gems and Minerals of America
    • California
      • Kern Co.
        • Kramer District
          • Boron
    Morgan, V. and Erd, R.C. (1969) Minerals of the Kramer borate district, California California Division of Mines and Geology Mineral Information Service: 22(9): 165-166; Carnahan, V. (1970), Notes on some minerals from Boron: Bulletin of the Mineralogical Society of Southern California, November: 10; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 174.
    • Colorado
      • Chaffee Co.
        • Nathrop
    ("Minerals of Colorado, updated & revised", by Eckel, Edwin B., 1997); USGS Bull 1716C
      • Eagle Co.
        • Gore Mts
    Minerals of Colorado (1997) E.B. Eckels
      • Larimer Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Park Co.
    AmMin 84:754-763
    • Montana
      • Garfield Co.
    www.minsocam.org/msa/Handbook/Davanite.PDF.
    • Nevada
      • Lander Co.
    NBMG Spec. Pub. 31 Minerals of Nevada; Fries, Carl, Jr., Tin deposits of northern Lander County, Nevada. USGS Bulletin 931-L, p. 279-294, illus., 1942.
    USGS Bulletin 931-1; Tin Deposits of Northern Lander County Nevada
      • White Pine Co.
        • Robinson District
    Tony Nikischer specimen
    • New Hampshire
      • Grafton Co.
    Rice, Jack M., Dickey, John S. Jr., and Lyons, John B. (1971): Skeletal Crystallization of Pseudobrookite (American Mineralogist 56:158-162.)
    • New Mexico
      • Catron Co.
    Minerals of New Mexico 3rd ed.
        • Taylor Creek District
          • Sawmill Creek
    NMGS 37th Field Conference
      • Grant Co.
    Minerals of New Mexico 3rd ed.
    Ronald Gibbs, Microminerals from the Big Lue Mountains, 13th Annual New Mexico Mineral Symposium, November 14-15, 1992
      • Sierra Co.
    Min Rec 16:2 p145
    Minerals of New Mexico 3rd ed.
        • Hillsboro District
          • Hillsboro
    Steve Stuart collection- from giveaway tables at 2013 Arthur Roe Micromineral Symposium
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Minerals of New Mexico 3rd ed.
        • Paramount Canyon
    Min Rec 16:2 p137; New Mexico rocks & minerals: the collecting guide (including maps) By Frank S. Kimbler, Robert J. Narsavage
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Min.Rec.: 20(5):404.
    Minerals of New Mexico 3rd ed. Min Rec, Vol. 20, No. 1, p. 60
      • Socorro Co.
    Ron Gibbs
      • Taos Co.
        • No Agua District
    Ramon DeMark and Jessie Kline, New Mexico Mineral Symposium, November 2000
    NMBMMR New Mexico Mineral symposium (2000) p.11
    • Oregon
      • Douglas Co.
        • Diamond Lake
    K. Starnes, personal ID, 1992
    Mineralogical Record Vol 16 Num 2
    Don Howard and Kent England Micro Probe Vol. X No. 8 page 3
      • Klamath Co.
    Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
    • Utah
      • Beaver Co.
        • Wah Wah Mts
    Min Rec 10:5 pp261-278
      • Juab Co.
    No reference listed
    Mineralogical Record, March/April 1995, page 126
    Microprobe 7:9 pp 12-14
    Min Rec 10:5 pp261-278; Bowling, R. (2011) Topaz from Utsh's Maynard Mine Extra Lapis English 14:22-25
    No reference listed
    Personally collected by Dr. Scott Campbell.
    Rick Dalrymple Collection
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    J. Holfert, W. Mroch, J. Fuller (1996) A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah (Topaz Mountain) Vol I HM Publishing 103pp
      • Millard Co.
    Personally Collected by Dr. Scott Campbell.
      • Piute Co.
    Mineralogical Magazine 1998 62 : 265-269
        • Tushar Mts
          • Marysvale area
    Steve Rust collection
    • Wisconsin
      • Marathon Co.
        • Nine Mile pluton
    Buchholz, T.W., Falster, A.U., and Simmons, WmB. (2007) 34th Rochester Mineralogical Symposium, Contributed Papers.
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