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Titaniferous Magnetite

Formula:
Fe
2+
 
(Fe
3+
 
,Ti)
 
2
O
 
4
A variety of Magnetite

A titanian variety of Magnetite.

Classification of Titaniferous Magnetite

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Chemical Properties of Titaniferous Magnetite

Formula:
Fe
2+
 
(Fe
3+
 
,Ti)
 
2
O
 
4
Essential elements:Fe, O
All elements listed in formula:Fe, O, Ti

Other Names for Titaniferous Magnetite

Synonyms:
Titanian MagnetiteTitanomagnetite
Other Languages:
German:Titanomagnetit
Spanish:Titanomagnetita

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 Titaniferous Magnetite

Reference List: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: 702.

Reynolds, I.M. (1985) The nature and origin of titaniferous magnetite-rich layers in the upper zone of the Bushveld complex: A review and synthesis. Economic Geology: 80: 1089-1108.

Balan, E., De Villiers, J.P.R., Eeckhout, S.G., Glatzel, P., Toplis, M.J., Fritsch, E., Allard, T., Galoisy, L., and Calas, G. (2006) Letter: The oxidation state of vanadium in titanomagnetite from layered basic intrusions. American Mineralogist: 91: 953-956.

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    Localities for Titaniferous Magnetite

    Hide Locality List
    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.
    Angola
     
    • Huíla Province
      • Lubango City Council
    		Eur. J. Mineral. , 1993, 5, pp. 1001-1024.
    Antarctica
     
    • Eastern Antarctica
      • Coats Land
        • Pensacola Mts
    		Am Min 62:623-633
      • Mac Robertson Land
        • Prince Charles Mts
    • Western Antarctica
      • Marie Byrd Land
        • Executive Committee Range
    		R.H. Grapes et al. , Min. Mag. , August 2003, Vol. 67, N°4, pp. 639-651.
    Argentina
     
    • Córdoba
    		The Canadian Mineralogist, Vol. 42, pp. 155-168 (2004)
    Australia
     
    • Queensland
    • Victoria
      • Camperdown
      • Phillip Island
        • Kitty Miller Bay
      • Shepparton
    • Western Australia
      • Dundas Shire
        • Norseman
    		Minedex
      • Meekatharra Shire
        • Meekatharra
    		Minedex
      • Sandstone Shire
        • Sandstone
    		Minedex
      • Yilgarn Shire
    		Econ Geol (1986) 81:1196-1202
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Felben valley
          • Amerbach valley
    		A. Strasser: Die Minerale Salzburgs (1989)
      • Kitzbüheler Alpen Mts
        • Zell am See
          • Thumersbach
    		A. Strasser: Die Minerale Salzburgs, 1989
      • Lungau
        • Murwinkel
          • Sticklerhütte
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Saalfelden
        • Biberg Mt. (Bieberg Mt.)
    		A. Strasser: Die Minerale Salzburgs (1989)
    • Styria
      • Bad Gleichenberg
        • Wilhelmsdorf
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Bolivia
     
    • Cochabamba Department
      • Ayopaya Province
    		Schultz (2004)
    Brazil
     
    • Central-West Region
      • Goiás
        • Amorinópolis
    		http://iavcei2004.free.cl/abstracts/Brod_ibxobhffgsxhpfgphnspm.doc.
    • South Region
      • Santa Catarina
    		1995, Geochimica Brasiliensis, 8: 179-214.
    • Southeast Region
      • Espírito Santo
        • Santa Teresa
    		Revista Brasileira de Geociências 30(1):030-034.
    Mineralogical Magazine 1998 62 : 687-695.
      • Minas Gerais
        • Patos de Minas
          • Pântano
    Bulgaria
     
    • Pazardzhik (Pazardjik) Oblast
      • Srednogorie (Sredna Gora; Srdnia Gora) Region
        • Panagyurishte (Panagurishte) Obshchina
          • Elshitsa
    		Bogdanov, K., Tsonev, D., and Kuzmanov, K. (1997): Mineralium Deposita 32, 219-229.
          • Panagyurishte
    		Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Cameroon
     
    • North Region
    • West Region
    Canada
     
    • Ontario
      • Lanark Co.
        • Drummond Township
    		[MinRec 13:199]
      • Leeds Co.
        • North Crosby Township
          • Newboro Lake
    		Wynne-Edwards, H. R. (1967) Geological Survey of Canada, Memoir 346, pp 124-125.
        • South Crosby Township
          • Newboro
    		Wynne-Edwards, H. R. (1967) Geological Survey of Canada, Memoir 346, pp 124-125.
      • Timiskaming District
        • Gauthier Township
          • Kirkland Lake area
            • Dobie
    • Québec
      • Nord-du-Québec
        • Nunavik
          • Ungava
    		Econ Geol (1986) 81:1147-1158
    China
     
    • Anhui Province
      • Ma'anshan Prefecture
        • Dangtu Co.
          • Ningwu Mining District
    		Yuanming Pan and Ping Dong (1999): Ore Geology Reviews 15, 177-242.
      • Tongling Prefecture
        • Tongling Mining District
    		Qin Xinlong, Du Yangsong, Lee, H.K., Yin Jingwu, and Guo Xifeng (2003): Chinese Science Bulletin 48(23), 2626-2634.
    • Hainan Province (Hainan Island)
      • Ding'an Co.
        • Penglai
    		Qiu Zhili, Wu Fuyuan, Yu Qingyuan, Xie Liewen, and Yang Shufeng (2005): Chinese Science Bulletin 50(22), 2602-2611.
    • Hebei Province
      • Chengde Prefecture
        • Chengde Co.
          • Damiao village
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
        • Fengning Co.
    		http://www.chinamining.org/Facts/2006-09-28/1159423968d1383.html
        • Luanping Co.
          • Hongqi
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
    Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
    • Inner Mongolia Autonomous Region
      • Baotou League
        • Baotou City
          • Wulashan Mining District
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt; Econ Geol (1994) 89:1289-1305
    • Jilin Province (Manchuria; Dongbei Region)
      • Jilin Prefecture
        • Huadian Co.
    		http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt
    • Shaanxi Province
      • Hanzhong Prefecture
        • Yang Co.
    		Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
    • Shanxi Province
      • Yuncheng Prefecture
        • Zhongtiao Mountains
          • Yuanqu Co.
    		http://pubs.usgs.gov/of/2005/1060/PorCu.txt
    • Sichuan Province
      • Panzhihua Prefecture
        • Miyi Co.
    		http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn1204
    http://www.wits.ac.za/geosciences/Research/EGRI/Circulars/pdf_files/358.pdf
        • Panzhihua City
    		http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn1203; Hong Zhong, Xinhua Zhou, Meifu Zhou, Min Sun, and Bingguang Liu (2002): Mineralium Deposita 37(2), 226-239
    http://www.wits.ac.za/geosciences/Research/EGRI/Circulars/pdf_files/358.pdf
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Hami (Kumul; Qumul) Prefecture
        • Hami (Kumul; Qumul) Co.
          • Huangshan-Jing'erquan ore belt
    		Zuoheng Zhang, Jingwen Mao, Andao Du, Pirajno, F., Zhiliang Wang, Fengmei Chai, Zhaochong Zhang, and Jianmin Yang (2007): Journal of Asian Earth Sciences, in press.
    Jingwen Mao, Pirajno, F., Zuoheng Zang, Fengmei Chai, Hua Wu, Shiping Chen, Linsong Cheng, Jianmin Yang, and Changqing Zhang (2007): Journal of Asian Earth Sciences (in press).
          • Weiya
    		Wang, Y.-W., Wang, J.-B., Wang, L.-J., Qin, Q.-X., Peng, X.-M., and Hui, W.-D. (2005): Mineral Deposits [Kuangchuang Dizhi] 24(4), 349-360.
      • Tulufan (Turfan; Turpan) Prefecture
        • Tuokexun (Toksun; Toqsun) Co.
    		Maozhong Min, Jia Chen, Jinpeng Wang, Guanhui Wei, and Fayek, M. (2005): Ore Geology Reviews 26, 51-69.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Dobříš (Doberschisch)
          • Nový Knín
    		Šrein, V., Pivec, E., Langrová, A..: Petrologie a mineralogie zlatonosného ložiska Libčice u Nového Knína. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 188-195.
    Egypt
     
    • Red Sea
    		Eur. J. Mineral. , 1993, 5, pp. 1039-1056.
    Finland
     
    • Länsi-Suomen Lääni
      • Kauhajärvi
    		Kärkkäinen, N., and Appelqvist, H. (1999): Mineralium Deposita 34, 754-769.
    • Lapin (Lapland) Lääni
      • Penikat complex
    		Econ Geol (1986) 81:1126-1136
    France
     
    • Aquitaine
      • Landes
    		B. Azambre and P. Monchoux, Bull. Minéral. , 1988, 111, pp. 39-47.
    • Auvergne
      • Haute-Loire
        • Brioude
          • Vieille-Brioude
        • Lubilhac
    		P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 ; F.H. Forestier : "Les Péridotites Serpentinisées de France", Fascicule IV, BRGM, 1964
        • Pinols
          • Desges
    		P.G. Pelisson : "Etude Mineralogique et Metallogenique du district filonien polytype de Paulhaguet, Haute-Loire, Massif Central Français. Doctorate Thesis, 1989
        • Saint-Julien-Chapteuil
          • Saint-Pierre-Eynac
    		J.L. Poitevin, C. Cotonian, H. Bertrand, Bull. Liais. Soc. Franç. Minéralo. Cristallo. , 1989, Vol. 1/1
    • Franche-Comté
      • Haute-Saône
        • Château-Lambert
          • Saint-Maurice-sur-Moselle
    		F. André and J. Béhien, Bull. Minéral. , France, 1983, 106, pp. 341-351.
    • Rhône-Alpes
      • Ardèche
        • Plateau des Coirons
    		Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 450-464.
          • Road from Taverne to Freyssenet
    		Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 450-464.
    French Polynesia
     
    • Tuamotu-Gambier
      • Tuamotu Archipelago (Tuamotus)
        • Mururoa Lagoon
          • Françoise
    		Ch. Wagner et al. , Bull. Minéral. , 1988, 111, pp. 523-534.
    • Windward Islands
      • Tahiti
        • Papeete
    		Am Min 62:634-645
    French West Indies
     
    • Guadeloupe
      • Basse-Terre
    		Ch. Lefèvre and Ph. Cocusse, Bull. Minéral. , 1985, 108, pp. 189-208.
    • Martinique
    Ph. D'arco, J. Cotten, Bull. Minéral. , 1985, 108, pp. 153-159.
    Germany
     
    • Baden-Württemberg
      • Kaiserstuhl
        • Oberbergen
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Kraichgau
        • Sinsheim
    		Frenzel, G. (1953): Contributions to Mineralogy and Petrology 3(6), 409-444.
    Frenzel, G. (1953): Contributions to Mineralogy and Petrology 3(6), 409-444.
      • Odenwald
        • Eberbach
    		Frenzel, G. (1953): Contributions to Mineralogy and Petrology 3(6), 409-444.
        • Mosbach
          • Neckarelz
    		Frenzel, G. (1953): Contributions to Mineralogy and Petrology 3(6), 409-444.
    Greenland
     
    • Tunu (East Greenland) Province
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    		Mineralogical Magazine, August 2004, Vol. 68(4), pp. 615–632
    Econ Geol (1997) 92:490-501
    Hungary
     
    • Heves Co.
      • Bükk Mts.
        • Szarvaskő
    		Koch: Minerals of Hungary, 1985
    • Nógrád Co.
      • Karancs-Medves Mts.
        • Somoskőújfalu
    		Mineral Species of Hungary, 2005
    India
     
    • Karnataka
      • Shimoga District
    • Maharashtra
      • Mumbai District (Bombay District)
        • Murud-Janjira
    		A.G. Dessai et al. , Eur. J. Mineral. , 1990, 2, pp. 667-685.
    A.G. Dessai, Eur. J. Mineral. , 1990, 2, pp. 667-685.
    Italy
     
    • Sicily
      • Trapani Province
    		Journal of Petrology (1998)
    • Tuscany
      • Pisa Province
        • Montecatini Val di Cecina
    		S. Conticelli, P. Manetti, S. Menichetti : "Mineralogy, Geochemistry and Sr-Isotopes in Orendites from South Tuscany, Italy : Constraints on their Genesis and Evolution", European Journal of Mineralogy, 1992, 4, 1359-1375
    • Umbria
      • Terni Province
        • Marsciano
          • San Venanzo
    		V. V. Sharygin et al. , Eur. J. Mineral. , 1996, 8, pp. 1199-1212.; Stoppa, F., Sharygin, V.V., and Cundari, A. (1997): Mineralogy and Petrology 61, 27-45.
    Stoppa, F., and Woolley, A.R. (1997): Mineralogy and Petrology 59, 43-67.
    Japan
     
    • Hokkaido Island
      • Hidaka Province
        • Samani-gun
          • Samani-cho
            • Horoman peridotite body
    		E. Takazawa et al. , Journal of Petrology, V 40, N 12, December 1999, pp. 1827-1851.
    Madagascar
     
    • Antananarivo Province
    		Chevallier, R., Bolfa, J. & Mathieu, S.(1955): Titanomagnétites et ilménites ferromagnétiques, Pts 1 and 2. Bull. Soc. Fr. Mineral Cristallogr. 78, 307-346 and 365-399
    Mongolia
     
    • Uvs Aimag
      • Zavkhan Soum
    Montserrat
     
    Montserrat Volcano Observatory
    Morocco
     
    T. Bunch and J. Wittke, NAU
    Namibia
     
    • Otjozondjupa Region
      • Otjiwarongo District
    		Kogut, A. I., Hagni, R. D. & Schneider, G. I. C. (1998): Geology, mineralogy, and paragenetic sequence of the Okorusu carbonatite-related fluorite ores, Namibia. In: Ed. Hagni, R. D., Proc. 9th Quadrenn. IAGOD Symp., 1994, 555-573.; Journal of Microtextural Mineralogy, 52 (4), 2000, pp. 17-20.
    New Zealand
     
    • North Island
      • Auckland
        • Franklin
          • Otaua
      • Tongariro
        • Taupo
    		The Rotokawa geothermal System. Krupp & Seward 1978, Economic Geology. 82 pp 1109-1129
    • South Island
      • Otago
        • Dunedin District
    		Am Min 60:722-725
    Norway
     
    • Nord-Trøndelag
      • Levanger
        • Ytterøya (island)
    		Carstens (1962, p. 16); Neumann (1985, p. 56).
    • Nordland
      • Lofoten
        • Vågan
          • Kabelvåg
    		Carstens (1957, pp. 34 and 35); Neumann (1985, p. 58).
    • Rogaland
      • Eigersund
        • Hestnes
    		Duchesne, J.C. (1999): Mineralium Deposita 34, 182-198.
        • Hovland
    		Duchesne, J.C. (1999): Mineralium Deposita 34, 182-198.
        • Kydland-Koldal Mines
    		Duchesne, J.C. (1999): Mineralium Deposita 34, 182-198.
    Duchesne, J.C. (1999): Mineralium Deposita 34, 182-198.
      • Sokndal
        • Sandbekk
    		Norges geologiske undersøkelse.Malmdatabasen. Forekomst nr 8 i Sokndal (1111) kommune
    • Vest-Agder
      • Flekkefjord
    		Barton, M. & Van Bergen, M. J. (1984): Secondary Ilvaite in a dolerite dyke from Rogaland SW Norway. Mineralogical Magazine 48: 449-456
    Oman
     
    • Dhofar (Al Janubiyah) Province
    Pacific Ocean
     
    • East Pacific Rise
    		J. Jedwab and J. Boulègue, Bull. Minéral. , 1986, 109, pp.635-642.
    Pakistan
     
    • Balochistan (Baluchistan)
      • Chagai District
    		Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Papua New Guinea
     
    • West New Britain Province
    		Lowder, G.G. (1970): Contributions to Mineralogy and Petrology 26, 324-340.
    Poland
     
    • Podlaskie
      • Suwałki District
        • Suwałki Massif
    		Morgan, J.W., Stein, H.J., Hannah, J.L., Markey, R.J., and Wiszniewska, J. (2000): Mineralium Deposita 35, 391-401.
    Kucha H. 1982: Haycockite and mooihoekite from titanomagnetite ore, Krzemianka, Poland. Mineralogia Polonica, vol. 13, no 2, 27-32.; Morgan, J.W., Stein, H.J., Hannah, J.L., Markey, R.J., and Wiszniewska, J. (2000): Mineralium Deposita 35, 391-401.
    Morgan, J.W., Stein, H.J., Hannah, J.L., Markey, R.J., and Wiszniewska, J. (2000): Mineralium Deposita 35, 391-401.
    Romania
     
    • Caras-Severin Co.
      • Banat Mts
        • Gătaia
    		Seghedi I., Ntaflos T. 2006: G˘ataia lamproite (SW Romania). Mineralogia Polonica, vol. 29, 188-191
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Zheleznogorsk
    		Mazurov, M.P., Grishina, S.N., Istomin, V.E., and Titov, A.T. (2007): Geology of Ore Deposits 49(4), 271-284.
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
    • Far-Eastern Region
      • Chukotskii Autonomous Okrug
        • Kolyma area
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Afrikanda
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    [World of Stones 95:5-6, p64]
          • Khibiny Massif
    		Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
    Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
    Konopleva, N.G., Ivanyuk, G.Y., Pakhomovsky, Y.A., Yakovenchuk, V.N., Men’shikov, Y.P., and Korchak, Y.A. (2008): Geology of Ore Deposits 50(8), 720-731.
    • Urals Region
      • Southern Urals
        • Bashkortostan (Bashkiria) Republic
          • Kuzha ore field
    		Filippov, V.A. (2008): Geology of Ore Deposits 50(5), 391-403.
        • Chelyabinsk Oblast'
          • Magnitogorsk
    		Mikhailov, B.M. (2004): Lithology and Mineral Resources 39(2), 114-134.
        • Kurganskaya Oblast'
    		Solodov, I.N., Chertok, M.B., Ganina, N.I., and Shulik, L.S. (2006): Geology of Ore Deposits 48(1), 61-73.
    Saint Kitts and Nevis
     
    Ph. D'arco, J. Cotten, Bull. Minéral. , 1985, 108, pp. 153-159.
    Saint Lucia
     
    • Choc
    		M. Le Guen de Kerneizon et al. , Bull. Minéral. , 1982, 105, pp. 203-211.
    • Grande Rivière Village
      • Morne Serpent hill
    		M. Le Guen de Kerneizon et al. , Bull. Minéral. , 1982, 105, pp. 203-211.
    Saint Vincent and the Grenadines
     
    • Saint Vincent
    		Journal of Petrology 10:1721-1764
    Slovakia
     
    • Banská Bystrica Region
      • Cérová Mts
        • Hajnačka
    		Uher P., Gregáňová G., Szakall S., 2006: Sapphire-bearingh syenite xenolith from Gortva, Cérová Mountains, Slovakia. Acta Miner.-Petrograph.,Abstract Series 5, Szeged, p.124
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Pauliš,P.,Ďuďa,R.,2002: Nejzajímavejší mineralogická naletište Slovenska. Kuttna,K.Hora, 136p
        • Spišská Nová Ves Mining District
          • Novoveská Huta
    		Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
      • Southern Vihorlat Mts
    		Bacsó,Z.,Ďuďa,R.,1988: Metalogenéza a rudné formácie rudného poľa Remetské Hámre. Min.Slovaca,Bratislava, 3, 193-220p
    • Prešov Region
      • Eastern Low Tatra Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Northern Slanské Mts
        • Červenica (Czerwenitza)
    		Duda,R. et. all.,1981: MIneralogia severnej časti Slanských vrchov. Min.Slovaca,Monografia 2, Bratislava, 98p
    Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
    South Africa
     
    • Limpopo Province
      • Bushveld Complex
        • Burgersfort
    		South African Journal of Geology, Dec. 2004, V 107, N 4, pp. 505-520.
    • Mpumalanga Province
      • Eastern Bushveld Complex
        • Lydenburg District
    		South African Journal of Geology, Dec. 2004, V 107, N 4, pp. 505-520.
    South African Journal of Geology, Dec. 2004, V 107, N 4, pp. 505-520.
    • Northern Cape Province
      • Warrenton
        • Mount Rupert
    		Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
    • Northwest Province
      • Swartruggens
    Spain
     
    • Canary Islands
      • Las Palmas Province
        • Gran Canaria (Grand Canary)
      • Santa Cruz de Tenerife Province
    		No reference listed
    • Extremadura
      • Badajoz
        • Monesterio
    		Tornos, F., Galindo, C., Casquet, C., Pevida, L.R., Martínez, C., Martínez, E., Velasco, F., and Iriondo, A. (2006): Mineralium Deposita 41, 737-769.
      • Cáceres
        • Garrovillas de Alconétar
    		Weibel, M. (1955): Contributions to Mineralogy and Petrology 4, 379-411.
    • Murcia
      • Jumilla
        • La Celia
    		E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
    Sweden
     
    • Ångermanland
      • Örnsköldsvik
    		No reference listed
    • Jämtland
      • Strömsund
    • Medelpad
      • Sundsvall
    		No reference listed
      • Timrå
    • Småland
      • Jönköping
        • Månsarp
    		A.Sjögren:Observations concerning chrom-iron. GFF 2, 1874
      • Vaggeryd
        • Byarum
    		Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
      • Värnamo
        • Rydaholm
    		Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
      • Vetlanda
        • Bäckaby
    		Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
    Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989
        • Karlstorp
    		GFF 6
    • Uppland
      • Vaxholm
        • Resarö
    • Västmanland
      • Ljusnarsberg
    No reference listed
      • Sala
    		No reference listed
    Tanzania
     
    • Arusha Region
    • Kilimanjaro Region
    		C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.
    Turkey
     
    • Marmara Region
      • Kirklareli Province
        • Dereköy
    		Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Uganda
     
    • Kabarole District
    		Barker, D.S. and Nixon, P.H. (1989) High-Ca, low-alkali carbonatite volcanism at Fort Portal, Uganda. Contributions to Minralogy and Petrology.: 103: 166-177.
    UK
     
    • England
    		Ford, T., A. Sarjeant & M. Smith (1993): The minerals of the Peak district of Derbyshire. UK Jour. Mines & Minerals 13, 16-55.
    • Scotland
      • North West Highlands (Inverness-shire)
        • Isle of Skye
          • Luib
    		 Tindle.A.G Mineralds of Britian and Ireland
    Ukraine
     
    • Zhytomyr Oblast' (Zhitomir Oblast')
    		No reference listed
    USA
     
    • Alaska
      • Dillingham Borough
        • Bristol Bay region District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Haines Borough
        • Juneau District
          • Skagway District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Ketchikan Gateway Borough
        • Ketchikan District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Lake and Peninsula Borough
        • Bristol Bay District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Prince of Wales-Outer Ketchikan Borough
        • Ketchikan District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
      • Valdez-Cordova Borough
        • Delta River District
    		U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
    • Arizona
    		www.admmr.state.az.us/circ9titanium.htm.
      • La Paz Co.
        • Little Harquahala Mts
          • Little Harquahala District
            • Salome
              • Martin Peak
                • Bonanza and Golden Eagle Mine group
    		Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 151 (Table 4).
      • Maricopa Co.
        • Big Horn Mts
    		Anthony, J.W. (1995), Mineralogy of Arizona, 3rd.ed.: 257-258, 284; Harrer, C.M. (1964), Reconnaissance of iron resources in AZ, US Bur. of Mines Inf. Circ. 8236.
    www.admmr.state.az.us/circ9titanium.htm.
      • Pinal Co.
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258; Harrer, C.M. (1964), Reconnaissance of iron resources in Arizona, US Bur. Mines Inf. Circ. 8236.
      • Yavapai Co.
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 284; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 39; Harrer, C.M. (1964), Reconnaissance of iron resources in AZ, US Bur. Mines Inf. Circ. 8236; www.admmr.state.az.us/circ9titanium.htm.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 432.
    A.I.M.E. Ore Deposits of the Western States (1933): 511-512.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 285; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 39.
    Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 38.
    • Arkansas
      • Pike Co.
        • Murfreesboro
    • California
      • Humboldt Co.
        • Orick District
          • Orick
      • Los Angeles Co.
        • San Gabriel Mts
          • Monte Cristo Canyon
            • Monte Cristo Mine (West Vein lease)
    		Tucker, W. Burling (1927), Los Angeles, Mono Counties: California Mining Bureau. Report 23: 296; Miller, William John (1931), Anorthosite in Los Angeles County, California: Journal of Geology: 39: 335; Miller, William John (1934), Geology of the western San Gabriel Mountains: University of Caifornia, Los Angeles, Pub. Math. and Physical Sci.: 1: 22; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 251.
      • San Bernardino Co.
    		Smith, A.L. and Carmichael, I.S.E. (1969) Quaternary trachybasalts from southeastern California. American Mineralogist: 54: 915; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 152.
    • Colorado
      • Boulder Co.
        • Caribou District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Eagle Co.
        • Gore Mountains
    		Minerals of Colorado (1997) E.B. Eckels
      • Gunnison Co.
        • White Earth District (Powderhorn District)
    		Minerals of Colorado (1997) Eckels, E. B.
    • Georgia
      • Cherokee Co.
    		Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
      • Cobb Co.
    		Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    • Indiana
      • Tippecanoe Co.
        • Lafayette
    		www-curator.jsc.nasa.gov/antmet/mmc/Lafay.pdf.
    • Massachusetts
      • Essex Co.
    		Emerson, 1917. Geology of Mass. & RI, p. 182.
        • Salem
    		Sears, JH, 1905, Geology of Essex County, Mass.
    • Minnesota
      • Lake Co.
        • Ely-Hoyt Lakes Area
          • Ely
    		No reference listed
      • St. Louis Co.
        • Ely-Hoyt Lakes Area
    • Montana
      • Hill Co.
        • Bearpaw Mts
    		Chakhmouradian A.R. & Mitchell R.H. (1999) Primary, agpaitic and deuteric stages in the evolution of Accessory Sr, REE, Ba and Nb-mineralization in nepheline-syenite pegmatites at Pegmatite Peak, Bearpaw Mts., Montana, Mineral. Petrol., 67: 85-110.
      • Meagher Co.
    		www.cseg.ca/conferences/2000/376.PDF.
    • Nevada
      • Lincoln Co.
        • Kanes Spring Wash
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Pershing Co.
    		NBMG Bull 89 Geology and Mineral Resources of Pershing County, Nevada
        • Scossa District
    		NBMG Bull 89 Geology and Mineral Resources of Pershing County, Nevada
    NBMG Bull 89 Geology and Mineral Resources of Pershing County, Nevada
    • New Hampshire
      • Rockingham Co.
    • New York
      • St Lawrence Co.
    		New York State Museum Bull. 223,224, Newland, David H. (July-August 1919), The Mineral Resources of the State of New York: 115.
      • Westchester Co.
    		Mineralogical Magazine 1963 33 : 635-645
    • North Carolina
      • Ashe Co.
    		U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995
    U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995
    U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995
      • Macon Co.
        • Cowee Valley
          • Ellijay District
            • Franklin
    		Gerald M.Friedman,Sept 27,1951,Study Of Hoegbomite
    • Oklahoma
      • Comanche Co.
        • Wichita Mts
    		J.D. Price et al. , Eur. J. Mineral. , 1996, 8, pp. 435-451.
    • Rhode Island
      • Providence Co.
    		Rutherford & Hermes, 1984 in GSA Bulletin: Vol. 95, No. 7, pp. 844–854.
      • Washington Co.
        • Westerly
    • Vermont
      • Rutland Co.
        • Shrewsbury
    		Eby, G. N. and McHone, J. G. (1997) Plutonic and hypabyssal intrusions of the Early Cretaceous Cuttingsville Complex, Vermont.
    • Virginia
      • Rockbridge Co.
    		Minerals of Virginia, 1990 by R. V. Dietrich
        • Northern Section-Blue Ridge Province
          • Montebello
    		Rocks&Min. 47:596 (1972)
    • Washington
      • Grays Harbor Co.
        • McCleary
    		Metal Mines of Washington-Preliminary Report; Derkey, Joseph, Lasmanis
    • Wyoming
      • Sweetwater Co.
    		Am Min 66:663-677
    Zimbabwe
     
    • Masvingo District
    		Kolb, J., Kisters, A.F.M., Hoernes, S., and Meyer, F.M. (2000): Mineralium Deposita 35, 109-125.
    Mineral and/or Locality
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