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Tantalite-(Fe)

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About Tantalite-(Fe)Hide

Formula:
Fe2+Ta2O6
Colour:
Iron-black
Lustre:
Sub-Adamantine, Greasy, Metallic, Sub-Metallic
Hardness:
6 - 6½
Specific Gravity:
6.65 - 7.95
Crystal System:
Orthorhombic
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 and Columbite-(Fe)-Tantalite-(Fe) Series.
Tantalite-(Fe) is fairly rare and many specimens are actually misidentified Tapiolite-(Fe).

Formerly known as ferrotantalite.


Classification of Tantalite-(Fe)Hide

Approved
Notes:
Renamed by the IMA
First Published:
2008
Approval History:
Renamed by IMA 2007 by special procedure.
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)Hide

Sub-Adamantine, Greasy, Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Iron-black
Comment:
Reddish brown in transmitted light.
Streak:
Black
Hardness:
6 - 6½ on Mohs scale
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)Hide

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)Hide

Formula:
Fe2+Ta2O6

Crystallography of Tantalite-(Fe)Hide

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

Geological EnvironmentHide

Geological Setting:
As a very accessory mineral in granitic pegmatites. Most tantalites with this composition are actually tapiolite structure.

Type Occurrence of Tantalite-(Fe)Hide

Synonyms of Tantalite-(Fe)Hide

Other Language Names for Tantalite-(Fe)Hide

Simplified Chinese:钽铁矿
Traditional Chinese:鉭鐵礦

Relationship of Tantalite-(Fe) to other SpeciesHide

Member of:
Other Members of this group:
Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.
Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6Orth. mmm (2/m 2/m 2/m)
Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
5 photos of Tantalite-(Fe) associated with QuartzSiO2
2 photos of Tantalite-(Fe) associated with StibiotantaliteSb(Ta,Nb)O4
2 photos of Tantalite-(Fe) associated with Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
1 photo of Tantalite-(Fe) associated with Columbite-(Fe)Fe2+Nb2O6
1 photo of Tantalite-(Fe) associated with Tantalite-(Mn)Mn2+Ta2O6

Related Minerals - Nickel-Strunz GroupingHide

4.DB.05ArgutiteGeO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05CassiteriteSnO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05PlattneritePbO2Tet. 4/mmm (4/m 2/m 2/m)
4.DB.05PyrolusiteMn4+O2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05RutileTiO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.05TripuhyiteFe3+Sb5+O4Tet.
4.DB.05TugarinoviteMoO2Mon.
4.DB.05Varlamoffite(Sn,Fe)(O,OH)2
4.DB.10ByströmiteMgSb2O6Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.DB.10Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10Tapiolite-(Mn)(Mn,Fe)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
4.DB.10OrdoñeziteZnSb2O6Tet.
4.DB.15bAkhtenskiteε-Mn4+O2Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.DB.15cNsutite(Mn4+,Mn2+)(O,OH)2Hex.
4.DB.15aParamontroseiteV4+O2Orth.
4.DB.15aRamsdelliteMn4+O2Orth. mmm (2/m 2/m 2/m)
4.DB.20Scrutinyiteα-PbO2Orth.
4.DB.25IshikawaiteU4+Fe2+Nb2O8Mon.
4.DB.25Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8Orth.
4.DB.25Samarskite-(Y)YFe3+Nb2O8Mon. 2/m : P2/b
4.DB.25SrilankiteZrTi2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.25Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
4.DB.25Calciosamarskite(Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8Mon.
4.DB.25Samarskite-(Yb)(Yb,Y,U,Th,Ca,Fe)(Nb,Ta)2O8Mon. 2/m : P2/b
4.DB.30FerberiteFeWO4Mon. 2/m : P2/b
4.DB.30HübneriteMnWO4Mon. 2/m : P2/b
4.DB.30Sanmartinite(Zn,Fe)WO4Mon. 2/m : P21/b
4.DB.30KrasnoselskiteCoWO4Mon.
4.DB.30HeftetjerniteScTaO4Mon. 2/m
4.DB.30HuanzalaiteMgWO4Mon. 2/m : P2/b
4.DB.35Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.35Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
4.DB.35Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.
4.DB.35Magnocolumbite(Mg,Fe,Mn)(Nb,Ta)2O6
4.DB.35Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6Orth. mmm (2/m 2/m 2/m)
4.DB.40FerrowodginiteFe2+Sn4+Ta2O8Mon.
4.DB.40LithiotantiteLiTa3O8Mon.
4.DB.40LithiowodginiteLiTa3O8Mon.
4.DB.40TitanowodginiteMn2+TiTa2O8Mon.
4.DB.40WodginiteMn2+Sn4+Ta2O8Mon.
4.DB.40FerrotitanowodginiteFe2+TiTa2O8Mon.
4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8
4.DB.45TivaniteV3+TiO3(OH)Mon.
4.DB.50Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]Mon. 2/m : P21/b
4.DB.55AlumotantiteAlTaO4Orth. mmm (2/m 2/m 2/m) : Pbcn
4.DB.60Biehlite((Sb,As)O)2[MoO4]Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

8.3.2.2Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
8.3.2.3Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
8.3.2.4Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
8.3.2.5Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

18.1.1LithiotantiteLiTa3O8Mon.
18.1.2LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
18.1.3NatroniobiteNaNbO3Mon.
18.1.4FranconiteNa(Nb2O5)(OH) · 3H2OMon.
18.1.5NatrotantiteNa2Ta4O11Mon.
18.1.6IrtyshiteNa2(Ta,Nb)4O11Hex.
18.1.7Rankamaite(Na,K)3(Ta,Nb,Al)11(O,OH)31Orth. mmm (2/m 2/m 2/m) : Cmmm
18.1.8Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.9CalciotantiteCaTa4O11Hex.
18.1.10RynersoniteCaTa2O6Orth. mmm (2/m 2/m 2/m)
18.1.11Microlite GroupA2-mTa2X6-wZ-nIso. m3m (4/m 3 2/m) : Fd3m
18.1.12BelyankiniteCa1-2(Ti,Nb)5O12 · 9H2O (?)Amor.
18.1.13LatrappiteCa2NbFe3+O6Orth. mmm (2/m 2/m 2/m) : Pnma
18.1.14Hochelagaite(Ca,Na,Sr)(Nb,Ti,Si,Al)4O11 · 8H2OMon.
18.1.15Bariomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.16ParabariomicroliteBaTa4O10(OH)2 · 2H2OTrig.
18.1.17Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6ZIso. m3m (4/m 3 2/m) : Fd3m
18.1.18AlumotantiteAlTaO4Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.19SimpsoniteAl4(Ta,Nb)3O13(OH,F)Trig. 3 : P3
18.1.20Sosedkoite(K,Na)5Al2(Ta,Nb)22O60Orth.
18.1.21Thoreaulite(Sn2+,Pb)(Ta,Nb)2O6Mon.
18.1.22Stannomicrolite (of Hogarth 1977)
18.1.23FoorditeSn2+(Nb,Ta)2O6Mon. 2/m : B2/b
18.1.24ChangbaiitePbNb2O6Trig.
18.1.25Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
18.1.26Plumbomicrolite (of Hogarth 1977)
18.1.27StibiocolumbiteSb(Nb,Ta)O4Orth. mm2
18.1.28StibiotantaliteSb(Ta,Nb)O4Orth. mm2
18.1.29NatrobistantiteIso.
18.1.30Cesplumtantite(Cs,Na)2(Pb,Sb3+)3Ta8O24Tet.
18.1.31Stibiomicrolite (of Groat et al.)
18.1.32Cesstibtantite
18.1.34BismutotantaliteBi(Ta,Nb)O4Orth.
18.1.35Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
18.1.36Tantalite-(Mn)Mn2+Ta2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.37Gerasimovskite(Mn,Ca)(Nb,Ti)5O12 · 9H2OAmor.
18.1.38Tapiolite-(Mn)(Mn,Fe)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
18.1.39Columbite-(Mn)Mn2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.40WodginiteMn2+Sn4+Ta2O8Mon.
18.1.41Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8Orth.
18.1.42Columbite-(Fe)Fe2+Nb2O6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.1.44ColumbiteOrth. mmm (2/m 2/m 2/m) : Pbcn
18.1.45Tantalite(Mn,Fe)(Ta,Nb)2O6
18.1.46Tapiolite(Fe,Mn)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m)
18.1.47Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
18.1.48Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.
18.1.50Strüverite(Ti,Ta,Fe)O2
18.1.51 Staringite(Fe,Mn)x(Ta,Nb)2xSn6-3xO12

Other InformationHide

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)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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)Hide

Localities for Tantalite-(Fe)Hide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • San Luis Province
    • 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
Jacobson, M.I., Calderwood, M.A., Grguric, B.A. (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia, 394 pages.
Austria
 
  • Carinthia
    • Spittal an der Drau District
      • 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
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
    • Nanping
      • 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
    • Suzhou
      • 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
    • Ji'an
      • Suichuan Co.
Weizheng Hu, Junping Huang, and Xiaowen Huang (2005): Resources Survey and Environment 26(4), 258-266
  • Sichuan
    • 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
    • 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
 
  • Olomouc Region
    • Šumperk District
      • 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.
  • South Bohemian Region
    • České Budějovice District
      • 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.
DR Congo
 
  • Ituri
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
  • Maniema
  • South Kivu
Melcher, F., Graupner, T., Gäbler, H. E., Sitnikova, M., Henjes-Kunst, F., Oberthür, T., ... & Dewaele, S. (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
    • Enontekiö
      • 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.
  • Pirkanmaa
    • 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
  • Southwest Finland
    • Kimitoön (Kemiönsaari)
    • Salo
      • Suomusjärvi
Niskanen, Maria (2014). Salitun felsisten juonten mineraalikoostumus ja evoluutio. Pro Gradu-tutkielma (2014). Geotieteiden ja Maantieteen Laitos Helsingin Yliopisto.gedrite
  • Uusimaa
    • Myrskylä
Ilkka Mikkola collection
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Bessines-sur-Gartempe
François Périnet collection
Germany
 
  • Saxony
    • Görlitz District
      • Löbau
        • Czorneboh
          • Wuischke
Witzke, T., Giesler, T. (2008): Neufunde und Neubestimmungen aus der Lausitz, Der Aufschluss, Vol. 59, 245-252
Hungary
 
  • Borsod-Abaúj-Zemplén County
    • Miskolc District
      • 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
      • 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.
      • 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.
Ivory Coast
 
  • Sassandra-Marahoué
    • Haut-Sassandra
      • Issia department
        • Issia
Allou, B.A., Lu, H.Z., Guha, J., Carignan, J., Naho, J., Pothin, K., Yobou, R. (2005) Une corrélation génetique entre les roches granitiques, et les dépôts éluvionnaires, colluvionnaires et alluvionnaires de colombotantalite d’Issia, centre-ouest de la Côte d’Ivoire. Exploration and Mining Geology, 14:4, 61-77 (in French).
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
 
  • Fukuoka prefecture
    • Munakata City
www.petrovrareminerals.com/articles02.html
  • Ibaraki Prefecture
    • Hitachiota City
Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
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
    • Dâures
      • Sandamap North Farm 115 (Sandamab)
Min Rec (2006) 37:361-470
    • Karibib
      • Brabant Farm 168
Min Rec (2006) 37:361-470
      • Davib Ost Farm 61 (Davib East Farm 61)
Min Rec (2006) 37:361-470
Min Rec (2006) 37:361-470
      • Erongorus Farm 166
Min Rec (2006) 37:361-470
Norway
 
  • Aust-Agder
    • Evje og Hornnes
      • Lauvland
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 Silesian Voivodeship
    • Dzierżoniów County
      • Piława Górna
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.
Pieczka, A., Łodziński, M., Szełęg, E., Ilnicki, S.S., Nejbert, K., Szuszkiewicz, A., Turniak, K., Banach, M., Michałowski, P. & Różniak, R. (2012) the Sowie Mts. Pegmatites (Lower Silesia, Sw Poland): A Current Knowledge. Mineralogica-Petrographica, 94, 105. Abstract Series, Szeged, Vol. 7
Portugal
 
  • Braga
    • 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
 
  • Chelyabinsk Oblast
    • Plastovsky District
      • Svetlyi
Pavel M. Kartashov analytical data 2009
  • Sverdlovsk Oblast
    • Prigorodny District
      • Yuzhakovo
        • Alabashka pegmatite field
http://webcenter.ru/~minbooks/murz_kaz.html
    • Rezhevsky District
      • Lipovsk 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
Rwanda
 
  • Western Province
    • Ngororero District
      • Gatumba
Bertossa, A. (1968) Inventaire des minéraux du Rwanda. Bulletin du Service Géologique de Rwanda: 4: 25-45.; Daltry, V.D.C. and von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15.
Slovakia
 
  • Bratislava Region
    • Bratislava
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 District
      • 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 District
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 District
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
 
  • North Chungcheong Province
    • Chungju City
      • 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
      • Forcarei
        • Forcarei South pegmatite field
Roza Llera, A.; Fuertes-Fuente, M.; Cepedal, A.; Martin-Izard, A. (2019) Barren and Li–Sn–Ta Mineralized Pegmatites from NW Spain (Central Galicia): A Comparative Study of Their Mineralogy, Geochemistry, and Wallrock Metasomatism. Minerals 9, 739.
      • 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 Census Area
      • Bristol Bay Mining 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 Mining District (Storm Mountain Mining District)
Minerals of Colorado (1997) E.B. Eckel
Minerals of Colorado (1997) Eckel, E. B.
  • Connecticut
    • Fairfield County
      • Bethel
Fred Davis collection
    • Middlesex Co.
      • East Hampton (Chatham)
Harold Moritz collection
  • Idaho
    • Clearwater Co.
      • Pierce City Mining District (Placer Mining 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.
      • 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 Mining District
        • Burnsville
          • Hurricane Mountain
Miller, J.W. and Allen, C.W.
  • South Dakota
    • Custer Co.
      • Custer Mining District
        • Custer
Danas System of Mineralogy 7th ed
    • Lawrence Co.
      • Tinton Pegmatite Mining District
Černý,P., Ercit, T. S & Wise, M. A. (1992) The tantalite-tapiolite gap; natural assemblages versus experimental data. Canadian Mineralogist. 30: 587-596; Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
  • Virginia
    • Amelia Co.
      • Winterham
Kearns, Lance E., Martin, Betsy S., Wise, Michael A. (2016), Mineral News, Vol. 32, No. 3
  • 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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