Tantalite-(Fe)
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About Tantalite-(Fe)
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.
Tantalite-(Fe) is fairly rare and many specimens are actually misidentified Tapiolite-(Fe).
Formerly known as ferrotantalite.
Classification of Tantalite-(Fe)
Approved
IMA status notes:
Renamed by the IMA
First published:
2008
Approval history:
Renamed by IMA 2007 by special procedure.
4/D.18-50
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
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
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
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
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}
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.
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)
Formula:
Fe2+Ta2O6
Elements listed:
Crystallography of Tantalite-(Fe)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcn
Cell Parameters:
a = 5.73 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 Environment
Geological Setting:
As a very accessory mineral in granitic pegmatites. Most tantalites with this composition are actually tapiolite structure.
Type Occurrence of Tantalite-(Fe)
Synonyms of Tantalite-(Fe)
Other Language Names for Tantalite-(Fe)
German:Ferrotantalit
Tantalit-(Fe)
Tantalit-(Fe)
Simplified Chinese:钽铁矿
Spanish:Ferrotantalita
Traditional Chinese:鉭鐵礦
Relationship of Tantalite-(Fe) to other Species
Member of:
Other Members of this group:
Columbite-(Fe) | Fe2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 | Orth. |
Columbite-(Mn) | Mn2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Qitianlingite | (Fe,Mn)2(Nb,Ta)2WO10 | Orth. |
Tantalite-(Mg) | (Mg,Fe2+)(Ta,Nb)2O6 | Orth. mmm (2/m 2/m 2/m) |
Tantalite-(Mn) | Mn2+Ta2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
5 photos of Tantalite-(Fe) associated with Quartz | SiO2 |
2 photos of Tantalite-(Fe) associated with Stibiotantalite | Sb(Ta,Nb)O4 |
2 photos of Tantalite-(Fe) associated with Cookeite | (Al,Li)3Al2(Si,Al)4O10(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 Grouping
4.DB.05 | Argutite | GeO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.05 | Cassiterite | SnO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.05 | Plattnerite | PbO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.05 | Pyrolusite | Mn4+O2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.05 | Rutile | TiO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.05 | Tripuhyite | Fe3+Sb5+O4 | Tet. |
4.DB.05 | Tugarinovite | MoO2 | Mon. 2/m : P21/b |
4.DB.05 | Varlamoffite | (Sn,Fe)(O,OH)2 | |
4.DB.10 | Byströmite | MgSb2O6 | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
4.DB.10 | Tapiolite-(Fe) | Fe2+Ta2O6 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.10 | Tapiolite-(Mn) | Mn2+Ta2O6 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
4.DB.10 | Ordoñezite | ZnSb2O6 | Tet. |
4.DB.15b | Akhtenskite | ε-Mn4+O2 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
4.DB.15c | Nsutite | (Mn4+,Mn2+)(O,OH)2 | Hex. |
4.DB.15a | Paramontroseite | V4+O2 | Orth. |
4.DB.15a | Ramsdellite | Mn4+O2 | Orth. mmm (2/m 2/m 2/m) |
4.DB.20 | Scrutinyite | α-PbO2 | Orth. |
4.DB.25 | Ishikawaite | U4+Fe2+Nb2O8 | Mon. |
4.DB.25 | Ixiolite | (Ta,Nb,Sn,Fe,Mn)4O8 | Orth. |
4.DB.25 | Samarskite-(Y) | YFe3+Nb2O8 | Mon. 2/m : P2/b |
4.DB.25 | Srilankite | ZrTi2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
4.DB.25 | Yttrocolumbite-(Y) | Y(U4+,Fe2+)Nb2O8 | |
4.DB.25 | Calciosamarskite | (Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8 | Mon. |
4.DB.25 | Samarskite-(Yb) | (Yb,Y,U,Th,Ca,Fe)(Nb,Ta)2O8 | Mon. 2/m : P2/b |
4.DB.30 | Ferberite | FeWO4 | Mon. 2/m : P2/b |
4.DB.30 | Hübnerite | MnWO4 | Mon. 2/m : P2/b |
4.DB.30 | Sanmartinite | (Zn,Fe)WO4 | Mon. 2/m : P21/b |
4.DB.30 | Krasnoselskite | CoWO4 | Mon. |
4.DB.30 | Heftetjernite | ScTaO4 | Mon. 2/m |
4.DB.30 | Huanzalaite | MgWO4 | Mon. 2/m : P2/b |
4.DB.35 | Columbite-(Fe) | Fe2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
4.DB.35 | Columbite-(Mn) | Mn2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
4.DB.35 | Tantalite-(Mn) | Mn2+Ta2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
4.DB.35 | Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 | Orth. |
4.DB.35 | Qitianlingite | (Fe,Mn)2(Nb,Ta)2WO10 | Orth. |
4.DB.35 | Magnocolumbite | (Mg,Fe,Mn)(Nb,Ta)2O6 | |
4.DB.35 | Tantalite-(Mg) | (Mg,Fe2+)(Ta,Nb)2O6 | Orth. mmm (2/m 2/m 2/m) |
4.DB.40 | Ferrowodginite | Fe2+Sn4+Ta2O8 | Mon. |
4.DB.40 | Lithiotantite | LiTa3O8 | Mon. |
4.DB.40 | Lithiowodginite | LiTa3O8 | Mon. |
4.DB.40 | Titanowodginite | Mn2+TiTa2O8 | Mon. |
4.DB.40 | Wodginite | Mn2+Sn4+Ta2O8 | Mon. 2/m : B2/b |
4.DB.40 | Ferrotitanowodginite | Fe2+TiTa2O8 | Mon. |
4.DB.40 | Wolframowodginite | Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8 | |
4.DB.45 | Tivanite | V3+TiO3(OH) | Mon. |
4.DB.50 | Carmichaelite | (Ti,Cr,Fe)[O2-x(OH)x] | Mon. 2/m : P21/b |
4.DB.55 | Alumotantite | AlTaO4 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
4.DB.60 | Biehlite | ((Sb,As)O)2[MoO4] | Mon. |
Related Minerals - Dana Grouping (8th Ed.)
8.3.2.2 | Columbite-(Fe) | Fe2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
8.3.2.3 | Tantalite-(Mn) | Mn2+Ta2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
8.3.2.4 | Columbite-(Mn) | Mn2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
8.3.2.5 | Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 | Orth. |
Related Minerals - Hey's Chemical Index of Minerals Grouping
18.1.1 | Lithiotantite | LiTa3O8 | Mon. |
18.1.2 | Lueshite | NaNbO3 | Orth. mmm (2/m 2/m 2/m) |
18.1.3 | Natroniobite | NaNbO3 | Mon. |
18.1.4 | Franconite | Na(Nb2O5)(OH) · 3H2O | Mon. |
18.1.5 | Natrotantite | Na2Ta4O11 | Mon. |
18.1.6 | Irtyshite | Na2(Ta,Nb)4O11 | Hex. |
18.1.7 | Rankamaite | (Na,K)3(Ta,Nb,Al)11(O,OH)31 | Orth. mmm (2/m 2/m 2/m) : Cmmm |
18.1.8 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) | Iso. m3m (4/m 3 2/m) : Fd3m |
18.1.9 | Calciotantite | CaTa4O11 | Hex. |
18.1.10 | Rynersonite | CaTa2O6 | Orth. mmm (2/m 2/m 2/m) |
18.1.11 | Microlite Group | A2-mTa2X6-wZ-n | Iso. m3m (4/m 3 2/m) : Fd3m |
18.1.12 | Belyankinite | Ca1-2(Ti,Nb)5O12 · 9H2O (?) | Amor. |
18.1.13 | Latrappite | Ca2NbFe3+O6 | Orth. mmm (2/m 2/m 2/m) : Pnma |
18.1.14 | Hochelagaite | (Ca,Na,Sr)(Nb,Ti,Si,Al)4O11 · 8H2O | Mon. |
18.1.15 | Bariomicrolite (of Hogarth 1977) | Iso. m3m (4/m 3 2/m) : Fd3m | |
18.1.16 | Parabariomicrolite | BaTa4O10(OH)2 · 2H2O | Trig. |
18.1.17 | Bariopyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z | Iso. m3m (4/m 3 2/m) : Fd3m |
18.1.18 | Alumotantite | AlTaO4 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
18.1.19 | Simpsonite | Al4Ta3O13(OH) | Trig. 3 : P3 |
18.1.20 | Sosedkoite | (K,Na)5Al2(Ta,Nb)22O60 | Orth. |
18.1.21 | Thoreaulite | (Sn2+,Pb)(Ta,Nb)2O6 | Mon. |
18.1.22 | Stannomicrolite (of Hogarth 1977) | ||
18.1.23 | Foordite | Sn2+(Nb,Ta)2O6 | Mon. 2/m : B2/b |
18.1.24 | Changbaiite | PbNb2O6 | Trig. |
18.1.25 | Plumbopyrochlore (of Skorobogatova et al.) | A2Nb2(O,OH)6Z | |
18.1.26 | Plumbomicrolite (of Hogarth 1977) | ||
18.1.27 | Stibiocolumbite | Sb(Nb,Ta)O4 | Orth. mm2 |
18.1.28 | Stibiotantalite | Sb(Ta,Nb)O4 | Orth. mm2 |
18.1.29 | Natrobistantite | Iso. | |
18.1.30 | Cesplumtantite | (Cs,Na)2(Pb,Sb3+)3Ta8O24 | Tet. |
18.1.31 | Stibiomicrolite (of Groat et al.) | ||
18.1.32 | Cesstibtantite | ||
18.1.34 | Bismutotantalite | Bi(Ta,Nb)O4 | Orth. |
18.1.35 | Bismutomicrolite (of Hogarth 1977) | Iso. m3m (4/m 3 2/m) : Fd3m | |
18.1.36 | Tantalite-(Mn) | Mn2+Ta2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
18.1.37 | Gerasimovskite | (Mn,Ca)(Nb,Ti)5O12 · 9H2O | Amor. |
18.1.38 | Tapiolite-(Mn) | Mn2+Ta2O6 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
18.1.39 | Columbite-(Mn) | Mn2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
18.1.40 | Wodginite | Mn2+Sn4+Ta2O8 | Mon. 2/m : B2/b |
18.1.41 | Ixiolite | (Ta,Nb,Sn,Fe,Mn)4O8 | Orth. |
18.1.42 | Columbite-(Fe) | Fe2+Nb2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
18.1.44 | Columbite | Orth. mmm (2/m 2/m 2/m) : Pbcn | |
18.1.45 | Tantalite | (Mn,Fe)(Ta,Nb)2O6 | |
18.1.46 | Tapiolite | (Fe,Mn)(Ta,Nb)2O6 | Tet. 4/mmm (4/m 2/m 2/m) |
18.1.47 | Tapiolite-(Fe) | Fe2+Ta2O6 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
18.1.48 | Columbite-(Mg) | (Mg,Fe,Mn)(Nb,Ta)2O6 | Orth. |
18.1.50 | Strüverite | (Ti,Ta,Fe)O2 | |
18.1.51 | Staringite | (Fe,Mn)x(Ta,Nb)2xSn6-3xO12 |
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:
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)
mindat.org URL:
https://www.mindat.org/min-1530.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Tantalite-(Fe)
Locality List




All localities listed without proper references should be considered as questionable.
Argentina | |
| 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 | |
| Costas Constantinides collection, Australian museum id |
| P.-A. Wulser unpublished data |
| MINEDEX |
| MINEDEX |
| minedex |
| Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia. |
| Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia. Hesperian Press, Carlisle, Western Australia. |
| Pegmatites of Western Australia; M.I. Jacobson, M.A. Calderwood, B.A. Grguric' Hesperian Press, Perth, 2007 |
| 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 | |
| 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 |
| G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995 |
Brazil | |
| Richard Dale collection |
| Collection of Michael G. Shaw |
| Josef Vajdak (Peque Rare Minerals) specimens (JV02/101-4), labelled "Golconda/Urbano mine". |
| 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): ? |
| Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228 |
| Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228. |
Canada | |
| 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. |
| 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 |
| 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 |
| 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 | |
| Can Rao, Rucheng Wang, Huan Hu, and Wenlan Zhan (2009): Canadian Mineralogist 47(5), 1195-1212. |
| Xiaojun Yuan, Chuanli Wan, and Jianping He (2004): Geology and Prospecting 40(1), 31-35; Jianping He (2006): Jiangsu Geology 30(3), 183-186 |
| Weizheng Hu, Junping Huang, and Xiaowen Huang (2005): Resources Survey and Environment 26(4), 258-266 |
| Chenghua Zhang and Guodong Ji (1983): Geology and Prospecting 19(4), 22-28 |
| Dong Peng, Mingguang Wang, Yunxi Xie, Shangpin Chen, and Jun Cao (2005): Geology and Prospecting 41(4), 33-38 |
| Denghong Wang, Yuchuan Chen, and Zhigang Xu (2003): Bulletin of Mineralogy, Petrology and Geochemistry 22(1), 14-17 |
Czech Republic | |
| Novák, M. et al.: Beryl-columbitový pegmatit z Branné, Hrubý Jeseník. Acta Mus. Moraviae, Sci. geol., 2003, 88, 113-122. |
| Novák, M.: Maršíkov - Schinderhübel. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 34-37. |
| 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 | |
| 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 |
| |
| 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 | |
| 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. |
| 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 | |
| |
| Niskanen, Maria (2014). Salitun felsisten juonten mineraalikoostumus ja evoluutio. Pro Gradu-tutkielma (2014). Geotieteiden ja Maantieteen Laitos Helsingin Yliopisto.gedrite |
| Ilkka Mikkola collection |
France | |
| François Périnet collection |
Germany | |
| Witzke, T., Giesler, T. (2008): Neufunde und Neubestimmungen aus der Lausitz, Der Aufschluss, Vol. 59, 245-252 |
Hungary | |
| Gál P. (2014): Titán-, nióbium és tantálásványok a Bagolyhegyi Metariolit Formáció (Bükk) képződményeiben. TDK dolgozat, kézirat, ME |
Italy | |
| 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 | |
| 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. |
| 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. |
| 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 | |
| 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 | |
| www.petrovrareminerals.com/articles02.html |
| 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 | |
| Hong Wang, Fangcheng Lin, Meifeng Shi, Hongzhao Shi, and Jiangli Wang (2013): Geology and Exploration 49(1), 89-98 |
Namibia | |
| Min Rec (2006) 37:361-470 |
| Min Rec (2006) 37:361-470 |
| Min Rec (2006) 37:361-470 |
Min Rec (2006) 37:361-470 | |
| Min Rec (2006) 37:361-470 |
Nigeria | |
| Rotimi, I.A., Obasi, R.A. (2012) Uranium-Bearing Niobotantalate (Petscheckite) – A New Mineral in Nigeria. Journal of Science and Technology, 1(6): 316-321. |
Norway | |
| 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. |
| 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. |
| Selbekk, R.S., Berg, H.-J.,Folvik, H. & Ellingsen, H.V. (2008): Mineraler i columbitt-tantalittgruppen fra Norge. Norsk Bergverksmuseum Skrift. 38, 33-36 |
| Raade, G. & Kristiansen, R. (2000a): Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrifter. 17, 19-25 |
Poland | |
| 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 | |
| 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 | |
| Pavel M. Kartashov analytical data 2009 |
| http://webcenter.ru/~minbooks/murz_kaz.html |
| 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 | |
| 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 | |
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590 |
| 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. |
| 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. |
| 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. |
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k |
| 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. |
| Uher P., Števko M., Kurylo S. (2020): Minerály skupiny columbitu a mikrolitu v granitovom pegmatite pri Liešťanoch: prvý výskyt vzácnoprvkovej Nb-Ta mineralizácie v Strážovských vrchoch (Slovenská republika). Bulletin Mineralogie Petrologie 28, 2, 347-352 (in Slovak with English abstract). |
| 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 | |
| P.M. Kartashov data |
Spain | |
| 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. |
| Guldris Leon, L.; Hogmalm, K.J.; Bengtsson, M. (2020) Understanding Mineral Liberation during Crushing Using Grade-by-Size Analysis—A Case Study of the Penuota Sn-Ta Mineralization, Spain. Minerals 10, 164. |
| 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. |
| 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 | |
| U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225. |
| Minerals of Colorado (1997) E.B. Eckel |
Minerals of Colorado (1997) Eckel, E. B. | |
| Fred Davis collection |
| Harold Moritz collection |
| XRD by Jim Wilson of Weber State, Utah. |
| 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. |
| 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. | |
| Rocks & Min. 80:256 (2005) |
| Ex. Forrest Cureton, in the collection of Alex Earl |
| www.excaliburmineral.com Smithsonian Institution Mineral Reference Collection No.103575-00 |
| MinMax Mineral Information System |
| Miller, J.W. and Allen, C.W. |
| Danas System of Mineralogy 7th ed |
| 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 |
| Kearns, L.E., Martin, B.S., Wise, M.A. (2016) Mineral Discoveries at the Morefield Pegmatite of Amelia, Virginia. Mineral News: 32(3). |
| www.uwrf.edu/~wc01 |
Zimbabwe | |
| Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 82. |
| Wolfgang Hampel, site visit May 2016 |
The Moon | |
| Mokhov A.V., Kartashov P.M., Rybchuk A.P., Gornostaeva T.A., Bogatikov O.V. (2018) Tantalo–Niobate from the Apollo-17 Regolith // Doklady Earth Science, v. 478, pt. 1, pp. 112-114. |
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