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Tantalite-(Fe)

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Formula:
Fe2+Ta2O6
System:
Orthorhombic
Colour:
Iron-black
Lustre:
Sub-Adamantine, Greasy, Metallic, Sub-Metallic
Hardness:
6 - 6½
Member of:
Name:
From ferrous iron content and the Greek mythological Tantalus, for the difficulty of dissolving the mineral. The original material with Fe>Mn was called Tantalite, subsequent name changes recognized the compositional variability of the series.
Dimorph of:
Tantalite-(Fe)-Tantalite-(Mn) Series. Tantalite-(Fe) is fairly rare and many specimens are actually misidentified Tapiolite-(Fe).

Formerly known as ferrotantalite.


Classification of Tantalite-(Fe)

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
2008
4.DB.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
8.3.2.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.1.43

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U

Physical Properties of Tantalite-(Fe)

Sub-Adamantine, Greasy, Metallic, Sub-Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Iron-black
Comment:
Reddish brown in transmitted light.
Streak:
Black
Hardness (Mohs):
6 - 6½
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct on {100}, less distinct on {010}
Fracture:
Irregular/Uneven, Splintery, Sub-Conchoidal
Density:
6.65 - 7.95 g/cm3 (Measured)    
Comment:
Density similar to tapiolite series.

Optical Data of Tantalite-(Fe)

Type:
Biaxial (-)
RI values:
nα = 2.260 nβ = 2.300 - 2.400 nγ = 2.430
Max Birefringence:
δ = 0.170
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively strong
Colour in reflected light:
Grey
Internal Reflections:
Red to reddish brown.

Chemical Properties of Tantalite-(Fe)

IMA Formula:
Fe2+Ta2O6
Elements listed in formula:

Crystallography of Tantalite-(Fe)

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcn
Cell Parameters:
a = 5.73Å, b = 14.24Å, c = 5.08Å
Ratio:
a:b:c = 0.402 : 1 : 0.357
Unit Cell Volume:
V 414.50 ų (Calculated from Unit Cell)
Morphology:
Exsolution intergrowths with ferrotapiolite.

Occurrences of Tantalite-(Fe)

Type Occurrence of Tantalite-(Fe)

Relationship of Tantalite-(Fe) to other Species

Series:
Forms a series with Columbite-(Fe) (see here)
Forms a series with Tantalite-(Mn) (see here)
Member of:
Other Members of Group:
Columbite-(Fe)FeNb2O6
Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6
Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10
Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6
Tantalite-(Mn)MnTa2O6
4.DB.05ArgutiteGeO2
4.DB.05CassiteriteSnO2
4.DB.05PlattneritePbO2
4.DB.05PyrolusiteMnO2
4.DB.05RutileTiO2
4.DB.05TripuhyiteFe3+Sb5+O4
4.DB.05TugarinoviteMoO2
4.DB.05Varlamoffite(Sn,Fe)(O,OH)2
4.DB.10ByströmiteMgSb25+O6
4.DB.10Tapiolite-(Fe)Fe2+Ta2O6
4.DB.10Tapiolite-(Mn)Mn2+Ta2O6
4.DB.10OrdoñeziteZnSb25+O6
4.DB.15bAkhtenskiteMnO2
4.DB.15cNsutiteMnx2+Mn4+1-xO2-2x(OH)2x
4.DB.15aParamontroseiteVO2
4.DB.15aRamsdelliteMn4+O2
4.DB.20ScrutinyitePbO2
4.DB.25Ishikawaite(U,Fe,Y)NbO4
4.DB.25Ixiolite(Ta,Mn,Nb)O2
4.DB.25Samarskite-(Y)(Y,Ce,U,Fe,Nb)(Nb,Ta,Ti)O4
4.DB.25SrilankiteTi2ZrO6
4.DB.25Yttrocolumbite-(Y)(Y,U,Fe2+)(Nb,Ta)O4
4.DB.25Calciosamarskite(Ca,Fe,Y)(Nb,Ta,Ti)O4
4.DB.25Samarskite-(Yb)YbNbO4
4.DB.30FerberiteFe2+WO4
4.DB.30HübneriteMn2+WO4
4.DB.30SanmartiniteZnWO4
4.DB.30KrasnoselskiteCoWO4
4.DB.30HeftetjerniteScTaO4
4.DB.30HuanzalaiteMgWO4
4.DB.35Columbite-(Fe)Fe2+Nb2O6
4.DB.35Columbite-(Mn)Mn2+Nb2O6
4.DB.35Tantalite-(Mn)Mn2+Ta2O6
4.DB.35Columbite-(Mg)MgNb2O6
4.DB.35QitianlingiteFe22+Nb2W6+O10
4.DB.35Magnocolumbite(Mg,Fe,Mn)(Nb,Ta)2O6
4.DB.35Tantalite-(Mg)MgTa2O6
4.DB.40FerrowodginiteFe2+Sn4+Ta2O8
4.DB.40LithiotantiteLiTa3O8
4.DB.40LithiowodginiteLiTa3O8
4.DB.40TitanowodginiteMn2+TiTa2O8
4.DB.40WodginiteMn2+Sn4+Ta2O8
4.DB.40FerrotitanowodginiteFe2+TiTa2O8
4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8
4.DB.45TivaniteTiV3+O3(OH)
4.DB.50Carmichaelite(Ti,Cr,Fe)(O,OH)2
4.DB.55AlumotantiteAlTaO4
4.DB.60BiehliteSb23+MoO6
18.1.1LithiotantiteLiTa3O8
18.1.2LueshiteNaNbO3
18.1.3NatroniobiteNaNbO3
18.1.4FranconiteNaNb2O5(OH) · 3H2O
18.1.5NatrotantiteNa2Ta4O11
18.1.6IrtyshiteNa2Ta4O11
18.1.7Rankamaite(Na,K,Pb)(Ta,Nb,Al)4(O,OH)10
18.1.8Hydropyrochlore(H2O,◻)2Nb2(O,OH)6(H2O)
18.1.9CalciotantiteCaTa4O11
18.1.10RynersoniteCaTa2O6
18.1.11Microlite Group(Ca,Na)2Ta2(O,OH,F)7
18.1.12BelyankiniteCa1-2(Ti,Zr,Nb)5O12 · 9H2O
18.1.13LatrappiteCa2NbFe3+O6
18.1.14HochelagaiteCaNb4O11 · 8H2O
18.1.15Bariomicrolite (of Hogarth 1977)
18.1.16ParabariomicroliteBaTa4O10(OH)2 · 2H2O
18.1.17Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.1.18AlumotantiteAlTaO4
18.1.19SimpsoniteAl4Ta3O13(OH)
18.1.20SosedkoiteK5Al2Ta22O60
18.1.21ThoreauliteSn2+Ta2O6
18.1.22Stannomicrolite (of Hogarth 1977)
18.1.23FoorditeSn2+Nb2O6
18.1.24ChangbaiitePbNb2O6
18.1.25Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
18.1.26Plumbomicrolite (of Hogarth 1977)
18.1.27StibiocolumbiteSbNbO4
18.1.28StibiotantaliteSb3+TaO4
18.1.29Natrobistantite
18.1.30CesplumtantiteCs2Pb3Ta8O24
18.1.31Stibiomicrolite (of Groat et al.)
18.1.32Cesstibtantite
18.1.34BismutotantaliteBiTaO4
18.1.35Bismutomicrolite (of Hogarth 1977)
18.1.36Tantalite-(Mn)Mn2+Ta2O6
18.1.37GerasimovskiteMn2+(Ti,Nb)5O12 · 9H2O
18.1.38Tapiolite-(Mn)Mn2+Ta2O6
18.1.39Columbite-(Mn)Mn2+Nb2O6
18.1.40WodginiteMn2+Sn4+Ta2O8
18.1.41Ixiolite(Ta,Mn,Nb)O2
18.1.42Columbite-(Fe)Fe2+Nb2O6
18.1.44Columbite
18.1.45Tantalite(Mn,Fe)(Ta,Nb)2O6
18.1.46Tapiolite(Fe,Mn)(Ta,Nb)2O6
18.1.47Tapiolite-(Fe)Fe2+Ta2O6
18.1.48Columbite-(Mg)MgNb2O6
18.1.50Strüverite(Ti,Ta,Fe)O2
18.1.51 Staringite(Fe,Mn)x(Ta,Nb)2xSn6-3xO12

Other Names for Tantalite-(Fe)

Name in Other Languages:
Simplified Chinese:钽铁矿
Traditional Chinese:鉭鐵礦

Other Information

Magnetism:
Paramagnetic
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 Tantalite-(Fe)

Reference List:
Thompson (1836), Rec. Gen. Sc.: 4: 416.

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: 780.

Canadian Mineralogist (1966): 8: 461.

Anthony, Bideaux, Bladh & Nichols (1997), Handbook of Mineralogy, Vol. III: 193.

American Mineralogist: (1975): 60: 613.

American Mineralogist: 80: 613-619.

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva (2000): 129(3): 59.

Mineralogy and Petrology (2000): 70: 165.

Internet Links for Tantalite-(Fe)

mindat.org URL:
https://www.mindat.org/min-1530.html
Please feel free to link to this page.
Specimens:
The following Tantalite-(Fe) specimens are currently listed for sale on minfind.com.

Localities for Tantalite-(Fe)

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.
Argentina
 
  • San Luis
    • Coronel Pringles Department
      • Totoral pegmatitic field
Miguel Ángel Galliski, María Florencia Márquez-Zavalía, Petr Černý, Julio César Oyarzábal, Ana Cecilia Mugas Lobos (2015) The anatomy of an albite-type granitic pegmatite from the Totoral pegmatite field, San Luis, Argentina. Journal of Geosciences, 60:31–44
Australia
 
  • Queensland
    • Mount Isa City Shire
Costas Constantinides collection, Australian museum id
  • South Australia
    • Flinders Ranges
      • North Flinders Ranges
        • Mt Babbage area (Inlier)
P.-A. Wulser unpublished data
  • Western Australia
    • Coolgardie Shire
      • Binneringie Station
MINEDEX
    • Derby-West Kimberley Shire
      • Napier Downs Station
MINEDEX
    • Port Hedland Shire
      • Wallareenya Station
minedex
        • Pilgangoora (Pilgangoora Mining Centre; Lynas Find; McPhees Patch; Mount York)
Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
    • Ravensthorpe Shire
      • Ravensthorpe
Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia.
    • Upper Gascoyne Shire
      • Yinnietharra (Yinnietharra Station; Yinnetharra)
Pegmatites of Western Australia; M.I. Jacobson, M.A. Calderwood, B.A. Grguric' Hesperian Press, Perth, 2007
        • Cairn Mining Centre
Pegmatites of Western Australia; M Jacobson, M Calderwood, B Grguric; Hesperian Press, Perth. 2007
Austria
 
  • Carinthia
    • Millstatt lake ridge
      • Spittal
        • Lieser ravine
Walter, F. (1998): Exkursion E4 am 27.9.1998 - MinPet 98 (Pörtschach am Wörthersee/Kärnten) - Die Pegmatite des Millstätter See-Rückens. Mitt. Österr. Mineral. Ges. 143, 437-450
        • Wolfsberg
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Brazil
 
  • Minas Gerais
    • Coronel Murta
Richard Dale collection
    • Divino das Laranjeiras
      • Linópolis
Collection of Michael G. Shaw
    • Governador Valadares
      • Golconda district
Josef Vajdak (Peque Rare Minerals) specimens (JV02/101-4), labelled "Golconda/Urbano mine".
    • Itinga
      • Taquaral
        • Piauí valley
Dias, C.H. & de Sá Carneiro Chaves, M.L: (2015): Uncommon Nb-tantalate from the Cachoeira mine, Araçuaí pegmatite district (Minas Gerais). Revista Escola des Minas, 68 (4): ?
  • Paraíba
    • Borborema mineral province
      • Nova Palmeira
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228
  • Rio Grande do Norte
    • Borborema mineral province
      • Parelhas
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
Canada
 
  • Northwest Territories
    • Yellowknife Pegmatite field
Anderson, M. O., Lentz, D. R., McFarlane, C. R., & Falck, H. (2013). A geological, geochemical and textural study of an LCT pegmatite: implications for the magmatic versus metasomatic origin of Nb-Ta mineralization in the Moose II pegmatite, Northwest Territories, Canada. Journal of GEOsciences, 58(4), 299-320.
  • Nunavut
P.B. Tomascak, M.A. Wise, P. Cerni, and D.L. Trueman (1994) Reconnaissance studies of four pegmatite populations in the Northwest Territories. pp 33-62. in W.D. Sinclair and D.G. Richardson eds. Studies Of Rare-Metal Deposits In The Northwest Territories. Geological Survey Of Canada Bulletin 475
  • Ontario
    • Kenora District
      • Pakeagama Lake Area
Breaks, F. W., Tindle, A. G., & Smith, S. R. The Pakeagama Lake Pegmatite: Continued Field and Laboratory Investigation of Highly Evolved, Complex-Type, Petalite-Subtype Rare-Element Mineralization in the Berens River-Sachigo Subprovince Boundary Zone
      • Paterson Lake Area
Tindle, A.G. & Breaks, F.W. (1998) Oxide minerals of the Separation Rapids rare-element granitic pegmatite group, northwestern Ontario. Canadian Mineralogist, 36, 609-635. Tindle, A.G., Breaks, F.W. and Webb, P.C. (1998) Wodginite-group minerals from the Separation Rapids Rare-Element Granitic Pegmatite Group, northwestern Ontario. Canadian Mineralogist, 36, 637-658. ontariominerals.com
Canadian Mineralogist 36, 609; Tindle, A.G., Breaks, F.W., and Selway, J.B. (2002) Tourmaline in petalite-subtype gramitic pegmatites: evidence of fractionation and contamination from Pakeagama Lake and Separation Lake areas of northwestern Ontario, Canada. Canadian Mineralogist, 40, 753-788.
China
 
  • Fujian Province
    • Nanping Prefecture
      • Yanping District
        • Nanping pegmatite field (Xikeng pegmatite field)
Can Rao, Rucheng Wang, Huan Hu, and Wenlan Zhan (2009): Canadian Mineralogist 47(5), 1195-1212.
  • Jiangsu Province
    • Suzhou Prefecture
      • Huqiu District
Xiaojun Yuan, Chuanli Wan, and Jianping He (2004): Geology and Prospecting 40(1), 31-35; Jianping He (2006): Jiangsu Geology 30(3), 183-186
  • Jiangxi Province
    • Ji'an Prefecture
      • Suichuan Co.
Weizheng Hu, Junping Huang, and Xiaowen Huang (2005): Resources Survey and Environment 26(4), 258-266
  • Sichuan Province
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Kangding Co.
        • Kangding pegmatite field
Chenghua Zhang and Guodong Ji (1983): Geology and Prospecting 19(4), 22-28
    • Ngawa Autonomous Prefecture (Aba Autonomous Prefecture)
      • Xiaojin Co.
Dong Peng, Mingguang Wang, Yunxi Xie, Shangpin Chen, and Jun Cao (2005): Geology and Prospecting 41(4), 33-38
  • Xinjiang Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Aletai Co. (Altay Co.)
Denghong Wang, Yuchuan Chen, and Zhigang Xu (2003): Bulletin of Mineralogy, Petrology and Geochemistry 22(1), 14-17
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • South Bohemia Region
      • Nové Hrady
Pavlíček V. et al.: Pegmatit beryl-kolumbitového typu ze Šejb v Novohradských horách. Zprávy o geologických výzkumech v roce 2008, Mineralogie, petrologie a geochemie, 185-189.
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Šumperk (Mährisch Schönberg)
        • Branná (Kolštejn; Goldenstein)
Novák, M. et al.: Beryl-columbitový pegmatit z Branné, Hrubý Jeseník. Acta Mus. Moraviae, Sci. geol., 2003, 88, 113-122.
        • Maršíkov (Marchendorf)
Novák, M.: Maršíkov - Schinderhübel. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 34-37.
Democratic Republic of Congo (Zaïre)
 
  • Maniema
  • Nord-Kivu
Frank Melcher, Torsten Graupner, Hans-Eike Gäbler, Maria Sitnikova, Friedhelm Henjes-Kunst, Thomas Oberthür, Axel Gerdes, Stijn Dewaele (2015): Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology. Ore Geology Reviews 64, 667–719
Finland
 
  • Lapland Region
    • Inari
      • Lemmenjoki
        • Miessijoki River
Tuisku, Pekka 2010. Heavy minerals from gold sluicing in Lapland Gold Rush area and their bearing on the origin of gold bearing tills. Res Terrae, Ser A, N:o 31. Proceedings of the Nordic Mineralogical Network V annual Meeting.
  • Southern Finland Region
    • Myrskylä
Ilkka Mikkola collection
  • Southwestern Finland Region
    • Kemiö Island (Kimito Island)
    • Salo
      • Suomusjärvi
Niskanen, Maria (2014). Salitun felsisten juonten mineraalikoostumus ja evoluutio. Pro Gradu-tutkielma (2014). Geotieteiden ja Maantieteen Laitos Helsingin Yliopisto.gedrite
  • Western and Inner Finland Region
    • Orivesi
      • Eräjärvi area
Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
Lahti, S. (2000): Compositional variation in columbite group minerals from different types of granitic pegmatites of the Eräjärvi district,South Finland. Journal of the Czech Geological Society. 45 (1-2),107-118
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Bessines-sur-Gartempe
François Périnet collection
Germany
 
  • Saxony
    • Oberlausitz
      • Löbau
        • Czorneboh
          • Wuischke
Witzke, T., Giesler, T. (2008): Neufunde und Neubestimmungen aus der Lausitz, Der Aufschluss, Vol. 59, 245-252
Hungary
 
  • Borsod-Abaúj-Zemplén Co.
    • Bükk Mts
      • Bükkszentkereszt
Gál P. (2014): Titán-, nióbium és tantálásványok a Bagolyhegyi Metariolit Formáció (Bükk) képződményeiben. TDK dolgozat, kézirat, ME
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
VIGNOLA, P., & DIELLA, V. (2007). Phosphates from Piona granitic pegmatites (Central Southern Alps, Italy). Granitic Pegmatites: the State of the Art. Book of Abstr.(T. Martins & R. Vieira, eds.). Universidade do Porto, Departamento de Geologia, Memórias, 8, 102-103.
Vignola, P., Fransolet, A.M., Guastoni, A. & Appiani, R. (2011). Le pegmatiti di Piona. Recenti studi sui filoni Malpensata, Luna e Sommafiume. Rivista Mineralogica Italiana, 1/2011, 30-38
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Trontano
          • Cosasca
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
        • Vigezzo Valley
          • Craveggia
            • Rio Vasca
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
          • Druogno
            • Orcesco
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
Ivory Coast (Côte d'Ivoire)
 
  • Haut-Sassandra region
    • Issia department
      • Issia
Allou, B. A.(2006), Expl. & Mining geology 14, 1-4, 61-77
Allou, B.A. (2006), Expl & Mining Geology 14, 1-4, 61-77
Allou B.A. et al. (2006), Expl. & Mining Geology. 14, 1-4, 61-77; Assaoulé Benjamin Allou (2005) Facteurs, Paramètres, Dynamique DE Distribution Et Genèse Des Dépôts DE Columbo-tantalite D'issia Centre-ouest DE LA Côte D'ivoire. PhD thesis, University of Quebec.
Japan
 
  • Honshu Island
    • Kanto Region
      • Ibaraki Prefecture
        • Hitachiohta City
Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
  • Kyushu Region
    • Fukuoka Prefecture
www.petrovrareminerals.com/articles02.html
Madagascar
Muséum national d' Histoire Naturelle, Paris specimen MNHN No 193.14
Myanmar
 
  • Shan State
    • Taunggyi District
      • Nyaungshwe Township
Hong Wang, Fangcheng Lin, Meifeng Shi, Hongzhao Shi, and Jiangli Wang (2013): Geology and Exploration 49(1), 89-98
Namibia
 
  • Erongo Region
    • Karibib District
      • Brabant Farm 168
Min Rec (2006) 37:361-470
      • Davib East Farm 61 (Davib Ost Farm)
Min Rec (2006) 37:361-470
Min Rec (2006) 37:361-470
      • Erongorus Farm 166
Min Rec (2006) 37:361-470
      • Usakos
        • Sandamap North Farm 115 (Sandamab)
Min Rec (2006) 37:361-470
Norway
 
  • Aust-Agder
    • Evje og Hornnes
Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 78. + Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36.
    • Iveland
      • Landås
Bjørlykke, H.(1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ; Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36.
  • Østfold
    • Moss
      • Dillingøya (Dillingö)
Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36
  • Telemark
    • Drangedal
      • Tørdal
Raade, G. & Kristiansen, R. (2000a): Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrifter. 17, 19-25
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Dzierżoniów District
      • Piława Górna (Ober Peilau; Gnadenfrei)
PIECZKA et al. 2010: Nb-Ta minerals in pegmatites in the DSS mine at Piława Górna, Góry Sowie Block, southwestern Poland. Mineralogia - Special Papers, 37.
Portugal
 
  • Braga District
    • Vieira do Minho
      • Anjos
        • Muro Alto Mine
Dias, P. A., Pereira, B., Leal Gomes, C., & Guimarães, F. (2009). Structure and Mineralogy of the Muro Alto Granitic Pegmatite (Vieira Do Minho-Portugal) – Peculiar Assemblages of High-F Hydro-thermal Evolution. Estudos Geológicos, 19(2), 105.
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Rezh District
          • Lipovka pegmatite field
Lapis 28(10), 60 (2003); Zap. Vseross. Mineral. Obshch., 132(2) pp. 49-59 ; Igor.V. Pekov, Lyudmila R. Memetova (2008) Minerals of the Lipovka Granite Pegmatites, Central Urals, Russia. Mineralogical Almanac 13:6-45
        • Yuzhakovo Village
          • Alabashka pegmatite field
http://webcenter.ru/~minbooks/murz_kaz.html
    • Southern Urals
      • Chelyabinsk Oblast'
        • Plast
          • Kochkar' District
            • Svetlyi
Pavel M. Kartashov analytical data 2009
Rwanda
 
  • Western Province
    • Gatumba District
Bertossa, A., 1967. Inventaire des minéraux du Rwanda. Bulletin du Service Géologique de Rwanda 4, 25-45.; Daltry, V.D.C. and O. von Knorring (1998) Type-Mineralogy of Rwanda with Particular Reference to the Buranga Pegmatite. Geologica Belgica 1:1-9
Slovakia
 
  • Bratislava Region
    • Bratislava Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
        • Devín
Chudík P., Uher P., Gadas P., Škoda R., Pršek J., 2011: Niobium-tantalum oxide minerals in the Jezuitské Lesy granitic pegmatite, Bratislava Massif, Slovakia: To to Nb and Fe to Mn evolutionary trends in narrow Be, Cs-rich and Li, B-poor dike. Mineralogy and Petrology, 101, Special Issue: Accessory Minerals.
    • Pezinok Co.
      • Limbach
Uher, P., Žitňan, P. & Ozdín, D. (2006) Compositional Variations Of Pegmatite Nb-ta Mineral Assemblage From The Limbach Area, Malé Karpaty Mts., Slovakia. Acta Miner.-Petrograph.,Abstract Series 5, Szeged, p.125; Uher, P., & Zitnan, P. (2007). Pegmatitic Nb-Ta oxide minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional variations and evolutionary trend. Journal of Geosciences, 52(1-2), 133-141.
      • Pezinok
        • Slnečné Valley
Uher P., Žitňan P., Ozdín D., 2007: Pegmatitic Nb-Ta oxide minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional variations and evolutionary trend. Journal of Geosciences, 52, 1-2, 133-141.
  • Košice Region
    • Rožňava Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
  • Trenčín Region
    • Prievidza Co.
Uher, P.: Columbit-tantalit z pegmatitu při Ráztočne v pohorí Žiar (stredné Slovensko). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 1, 109-112.
  • Trnava Region
    • Piešťany Co.
Uher, P., Broska, I., 1989: Muskovitický pegmatit s obsahom minerálov vzácnych prvkov při Moravanoch n.V. (Považský Inovec). Min.Slovaca, 21,2,163 – 174
Uher P., 2000: Minerály granitových pegmatitov Slovenska-súčasný stav poznatkov. Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze, 8, 170-180.
South Korea
 
  • Chungcheongbukdo (Chungchong-pukto)
    • Chungju (Chung Won Kum; Chung-ju)
      • Joongwon-gun
        • Mt. Eorae
P.M. Kartashov data
Spain
 
  • Castile and Leon
    • Salamanca
      • Golpejas-Vega de Tirados
        • Golpejas Mining Group
Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp.
  • Galicia
    • Pontevedra
      • Lalín
Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp
USA
 
  • Alaska
    • Dillingham Borough
      • Bristol Bay District
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • Colorado
    • Larimer Co.
      • Crystal Mountain Pegmatite District (Storm Mountain District)
Minerals of Colorado (1997) E.B. Eckels
Minerals of Colorado (1997) Eckel, E. B.
  • Connecticut
    • Fairfield Co.
      • Bethel
Fred Davis collection
  • Idaho
    • Clearwater Co.
      • Pierce City District
        • Pierce Divide occurrence
XRD by Jim Wilson of Weber State, Utah.
  • Maine
    • Franklin Co.
      • Madrid
Wise, M. A., Francis, C. A., and Cerny (2012) Compositional and Structural Variations in Columbite-Group Minerals from Granitic Pegmatites of the Brunswick and Oxford Fields, Maine: Differential Trends in F-poor and F-rich Environments, Canadian Mineralogist, v. 50, p. 1515-1530.
  • Michigan
    • Dickinson Co.
      • Menominee iron range
        • Randville
Travis Olds collection
Buchholz, T.W., A.U. Falster & W.B. Simmons (2014), Accessory Mineralogy of an Evolved Dickinson County, Michigan, Pegmatite, a presentation before the 41st. Rochester Mineralogical Symposium, April 25, 2014.
  • New Hampshire
    • Grafton Co.
      • Groton
Rocks & Min. 80:256 (2005)
  • New Mexico
    • Rio Arriba Co.
      • Petaca District
        • South Petaca
Ex. Forrest Cureton, in the collection of Alex Earl
  • North Carolina
    • Ashe Co.
www.excaliburmineral.com Smithsonian Institution Mineral Reference Collection No.103575-00
    • Gaston Co.
      • Bessemer City
MinMax Mineral Information System
    • Yancey Co.
      • Spruce Pine District
        • Burnsville
          • Hurricane Mountain
Miller, J.W. and Allen, C.W.
  • South Dakota
    • Custer Co.
      • Custer District
        • Custer
Danas System of Mineralogy 7th ed
    • Lawrence Co.
      • Tinton pegmatite District
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
  • Wisconsin
    • Marathon Co.
      • Wausau Intrusive Complex
        • Nine Mile Pluton
www.uwrf.edu/~wc01
Zimbabwe
 
  • Manicaland
    • Buhera District
Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 82.
  • Matabeleland North
    • Hwange District
      • Dete (Dett)
Wolfgang Hampel, site visit May 2016
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