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Tapiolite-(Fe)

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About Tapiolite-(Fe)Hide

Formula:
Fe2+Ta2O6
Colour:
Black
Lustre:
Sub-Adamantine, Metallic, Sub-Metallic
Hardness:
6 - 6½
Specific Gravity:
7.90
Crystal System:
Tetragonal
Member of:
Name:
Nils Adolf Erik Nordenskiöld named tapiolite in 1863 after Tapio, Finnish god of the forest as the original material was from a granite pegmatite prospect located close to the Kumala farm in the town of Sukula in Finland. Renamed to ferrotapiolite in 1983 to distinguish it from manganotapiolite. Later renamed to tapiolite-(Fe).

Classification of Tapiolite-(Fe)Hide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1863
4.DB.10

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
8.3.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.1.47

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

Physical Properties of Tapiolite-(Fe)Hide

Sub-Adamantine, Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Brownish black
Hardness:
6 - 6½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Splintery
Density:
7.90 g/cm3 (Measured)    8.17 g/cm3 (Calculated)

Optical Data of Tapiolite-(Fe)Hide

Type:
Uniaxial (+)
RI values:
nω = 2.270 nε = 2.420
Birefringence:
0.15
Max Birefringence:
δ = 0.150
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Optical Extinction:
Parallel
Pleochroism:
Strong
Comments:
O = pale reddish brown, E nearly opaque

Chemical Properties of Tapiolite-(Fe)Hide

Formula:
Fe2+Ta2O6

Crystallography of Tapiolite-(Fe)Hide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P42/mnm
Cell Parameters:
a = 4.762 Å, b = 4.762 Å, c = 9.272 Å
Ratio:
a:b:c = 1 : 1 : 1.947
Unit Cell V:
210.26 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Short prismatic, nearly equant, rarely elongated. {110}, {100}, {001}, {113}
Twinning:
{013} common

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.22 Å(30)
3.36 Å(100)
2.58 Å(90)
2.38 Å(30)
1.746 Å(70)
1.680 Å(30)
1.502 Å(20)
1.407 Å(30)
Comments:
23-1124

Geological EnvironmentHide

Geological Setting:
Granite pegmatites

Type Occurrence of Tapiolite-(Fe)Hide

Geological Setting of Type Material:
Granite pegmatites.
Reference:
Nordenskiöld, A.E. (1863) Om tantalitartade mineralier från nejden af Torro. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar: 20: 443-453.

Synonyms of Tapiolite-(Fe)Hide

Other Language Names for Tapiolite-(Fe)Hide

Relationship of Tapiolite-(Fe) to other SpeciesHide

Member of:
Other Members of this group:
Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Tapiolite-(Fe) associated with QuartzSiO2
2 photos of Tapiolite-(Fe) associated with Mica Group
2 photos of Tapiolite-(Fe) associated with MicroclineK(AlSi3O8)
2 photos of Tapiolite-(Fe) associated with MuscoviteKAl2(AlSi3O10)(OH)2
1 photo of Tapiolite-(Fe) associated with AlbiteNa(AlSi3O8)
1 photo of Tapiolite-(Fe) associated with SimpsoniteAl4Ta3O13(OH)
1 photo of Tapiolite-(Fe) associated with WodginiteMn2+Sn4+Ta2O8

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) : P42/mnm
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-(Mn)Mn2+Ta2O6Tet. 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.35Tantalite-(Fe)Fe2+Ta2O6Orth. 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

8.3.1.2Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm

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
18.1.19SimpsoniteAl4Ta3O13(OH)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)Mn2+Ta2O6Tet. 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
18.1.43Tantalite-(Fe)Fe2+Ta2O6Orth. 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)
18.1.48Columbite-(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

Fluorescence of Tapiolite-(Fe)Hide

Not fluorescent

Other InformationHide

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 Tapiolite-(Fe)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nordenskiöld, A.E. (1863) Om tantalitartade mineralier från nejden af Torro. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar: 20: 443-453.
Simpson, E.S. (1917) On tapiolite in the Pilbara goldfield, Western Australia. Mineralogical Magazine: 18: 107-121.
von Heidenstam, O. (1968) Neutron and X-ray diffraction studies on tapiolite and some synthetic substances of trirutile structure. Arkiv för Kemi: 28: 375-387.
Osaka, T., Nakayama, T. (1969) On the structure of tapiolite formed by solid state reactions. Transactions of the Japan Institute of Metals: 10: 437-438.
Clark, A.M., Fejer, E.E. (1978) Tapiolite, its chemistry and cell dimensions. Mineralogical Magazine: 42: 477–480.
Wise, M.A., Černý, P. (1996) The crystal chemistry of the tapiolite series. The Canadian Mineralogist: 34: 631-647.
Novák, M., Černý, P., Cempírek, J., Srein, V., Filip, J. (2004) Ferrotapiolite as a pseudomorph of stibiotantalite from the Laštovičky lepidolite pegmatite, Czech Republic: an example of hydrothermal alteration at constant Ta/(Ta + Nb). The Canadian Mineralogist: 42: 1117-1128.
Zema, M.; Tarantino, S.C.; Giorgiani, A. (2006) Structural changes induced by cation ordering in ferrotapiolite. Mineralogical Magazine: 70: 319-328.
Burke, E.A.J. (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks. The Mineralogical Record: 39: 131-135.
Ercit, T.S. (2010) Hidden story of tapiolite. Mineralogical Magazine: 74: 715-729.

Internet Links for Tapiolite-(Fe)Hide

Localities for Tapiolite-(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
 
  • Catamarca Province
    • Belén Department
Colombo, F., Lira, R., Simmons, W., & Falster, A. (2011). The NYF-type miarolitic-rare earth elements pegmatites of the El Portezuelo granite, Papachacra (Catamarca, NW Argentina). Asoc. Geol. Arg., Serie D, Publicación Especial, 14, 57-59.
  • Salta Province
    • La Poma department
      • Nevados de Palermo
        • El Quemado district
Galliski et al. (2001) Bismutotantalite from northwestern Argentina: description and crystal structure. Canadian Mineralogist Vol. 39, pp. 103-110.
  • San Luis Province
    • Chacabuco department
      • Sierra de la Estranzuela
[MinRec 31:202]; Galliski M A, Černý P, Márquez-Zavalía M F, Chapman R (1999) Ferrotitanowodginite, Fe2+TiTa2O8, a new mineral of the wodginite group from the San Elías pegmatite, San Luis, Argentina. American Mineralogist 84, 773-777
http://minsocam.org/MSA/AmMin/TOC/Articles_Free/1999/Galliski_p773-777_99.pdf
Australia
 
  • Western Australia
    • Bridgetown-Greenbushes Shire
      • Greenbushes Tinfield
Wise, M.A., and Cerny, P., 1996, The crystal chemistry of the tapiolite series: Canadian Mineralogist, v. 34, p. 631-647 (see p. 634).
    • Port Hedland Shire
      • Strelley Station
Material originally from the Australian Government Chemical Laboratory, supplied in 1966. EDS analysed. Andrew Hodgson collection.
Austria
 
  • Carinthia
    • Spittal an der Drau District
      • Spittal an der Drau
        • 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
    • Divino das Laranjeiras
Luis Menezes
    • Galiléia
      • Sapucaia do Norte
Rick Dalrymple
Ron Gyllenhammer Collection, Luiz Menezes Label
  • Paraíba
    • Frei Martinho
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.
      • Quixaba
Lapis 3/2008, p. 12 (ad)
Witzke, T., Steins, M., Doering, T., Schuckmann, W., Wegner, R., Pöllmann, H. (2011): Fluornatromicrolite, (Na,Ca,Bi)2Ta2O6F, a new mineral from Quixaba, Paraíba, Brazil. Canadian Mineralogist, 49, 1105-1110
    • Junco do Seridó
Pereira das Neves, P. S, and Atencio, D. (2018) Enciclopedia dos Minerais do Brasil v. 6: Tectossilicatos, p. 279, Ed. da Ulbra. Canaos, Brazil.
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    • Nova Palmeira
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.; Beurlen, H., Soares, D. R., Thomas, R., Prado-Borges, L. E., & Castro, C. D. (2005). Mineral chemistry of tantalate species new in the Borborema Pegmatitic Province, Northeast Brazil. Anais da Academia Brasileira de Ciências, 77(1), 169-182
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228; Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., & Da Silva, M. R. (2013). Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58(2), 79-90.
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    • Pedra Lavrada
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    • Picuí
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
    • Acari
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
    • Carnaúba dos Dantas
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.
    • Equador
Paul Bongaerts collection; Canadian Mineralogist (1986): 24: 655-663.
    • Parelhas
Beurlen, H., Da Silva, M.R.R., Thomas, R., Soares, D.R., and Olivier, P. (2008): Mineralium Deposita 43, 207-228.
Canada
 
  • Manitoba
    • Lac-du-Bonnet area
      • Bernic Lake
Grice, Joel D. (1989) Bernic Lake, Manitoba: Mining for Space-age Elements. In: Famous mineral localities of Canada. Published by Fitzhenry & Whiteside Limited & the National Museum of Natural Sciences, 190 pages: 64-67; 153-155.; Van Lichtervelde, Marieke, Melcher, Frank, Wirth, Richard (2009) Magmatic vs. hydrothermal origins for zircon associated with tantalum mineralization in the Tanco pegmatite, Manitoba, Canada. American Mineralogist, 94(4), 439–450.
      • Greer Lake
M. Masau, P. Cerny, M.A. Cooper, R. Chapman & J. Grice (2002) Can. Mineral. 40, 1649-1655; Morgan Masau, Petr Cerny and Ron Chapman (2000) Exsolution of zirconian-hafnian wodginite from manganoan-tantalian cassiterite, Annie Claim #3 granitic pegmatite, southeastern Manitoba, Canada. The Canadian Mineralogist, 38:685-694.
  • Northwest Territories
    • Yellowknife Pegmatite field
Wise, M.A., Černý, P. (1990) Beusite-triphyllite intergrowths from the Yellowknife pegmatite field, Northwest Territories. The Canadian Mineralogist: 28: 133-139.
  • 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.
      • Skinner Lake Area
Taylor, R.P., and Henham, R. (2001): Exploration and Mining Geology 10(1/2), 85-93.
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.; Rao, C., Wang, R. C., Hatert, F., & Baijot, M. (2014). Hydrothermal transformations of triphylite from the Nanping No. 31 pegmatite dyke, southeastern China. European Journal of Mineralogy, 26(1), 179-188.; Rao, C., Wang, R., Yang, Y., Hatert, F., Xia, Q., Yue, X., & Wang, W. (2017). Insights into post-magmatic metasomatism and Li circulation in granitic systems from phosphate minerals of the Nanping No. 31 pegmatite (SE China). Ore Geology Reviews, 91, 864-876.; Rao, C.; Wang, R.-C.; Hatert, F.; Wu, R.-Q.; Wang, Q. (2020) Mineralogy and Geochemistry of Sr-Bearing Phosphates from the Nanping No. 31 Pegmatite (SE China): Implications for Sr Circulation and Post-Magmatic Processes in Granitic Systems. Minerals 10, 541.
  • Xinjiang
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Fuyun Co. (Koktokay Co.)
          • Koktokay pegmatite field (Keketuohai pegmatite field)
            • Altay Mine
Zhang et al. 2004, Mineralogical Magazine Vol 68, pp. 739-756.
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
Miloš René und Radek Škoda (2011): Nb-Ta-Ti oxides fractionation in rare-metal granites: Krásno-Horní Slavkov ore district, Czech Republic. Mineralogy and Petrology 103, 37-48.
  • Olomouc Region
    • Šumperk District
      • Maršíkov (Marchendorf)
Novák, M., Černý, P.: Přehled minerálů niobu a tantalu z granitických pegmatitů České republiky. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1999, roč. 7, s. 117-131.; Novák, M.: Maršíkov - Scheibengraben. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 38-41. ; Novák, M., ČERNÝ, P., & Uher, P. (2003). Extreme variation and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite granitic pegmatite, Marsikov, Czech Republic. European Journal of Mineralogy, 15(3), 565-574.
  • 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
 
  • Haut-Lomami
    • Numbi
      • Numbi mining area
Jan Loun, Milan Novák, Jan Cempírek, Radek Škoda, Michaela Vašinová Galiová, Lubomír Prokeš, Marek Dosbaba, Renata Čopjaková (2018) Geochemistry and secondary alterations of microlite from eluvial deposits in the Numbi mining area, South Kivu, Democratic Republic of the Congo. Canadian Mineralogist 56, 203-220.
Egypt
 
  • Red Sea
    • Eastern Desert
      • Marsa Alam
Fengjun Nie, Fengxiang Wang, Yu'an Zhao, Yan Sun, and Hua Chai (2013): Mineral Deposits 32(4), 730-743
Finland
 
  • Lapland
    • Inari
kojonen, K, Lahti, S. I. and Melcher, F. 2012. Lemmenjoen niobi-tantaalimineraalit. In: Geologian Tutkimuskeskus SMS 55-juhlaseminaari abstraktivolyymi
  • 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.I., Johanson, B. & Virkkunen, M. (1983): Contribution to the chemistry of tapiolite – manganotapiolite, a new mineral. Bulletin of the Geological Society of Finland. 55, 101-109.
Sandström, F. & Lahti, S.I. (2009): Viitaniemipegmatiten i Eräjärvi, Orivesi, Finland. Litofilen 26 (1): 11-38; 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
  • South Ostrobothnia
    • Seinäjoki
Alviola, Reijo 1989. On the granitic pegmatites of the Seinäjoki and Haapaluoma groups. In: Symposium Precambrian granitoids. Petrogenesis, geochemistry and metallogeny, August 14-17 Helsinki, Finland. Excurcion CI: Lateorogenic and synorogenic Svecofennian granitoids and associated pegmatites of southern Finland, ed. S.I.Lahti GTK opas 26, 41-48
  • Southwest Finland
    • Kimitoön (Kemiönsaari)
      • Kimitoön Island
Clark, A.M. & Fejer, E.E.(1978): Tapiolite, its chemistry and cell dimensions. Mineralogical Magazine. 42, 477-480; Lindroos, A., Romer, R. L., Ehlers, C., & Alviola, R. (1996). Late‐orogenic Svecofennian deformation in SW Finland constrained by pegmatite emplacement ages. Terra Nova, 8(6), 567-574.
Clark, A.M. & Fejer, E.E.(1978): Tapiolite, its chemistry and cell dimensions. Mineralogical Magazine. 42, 477-480
    • Salo
      • Kisko
Jyrki Autio Collection 2018
  • Tavastia Proper
    • Hämeenlinna
Ilkka Nmikkola collection
    • Tammela
      • Sukula Pegmatites
        • Kulmala
Nordenskiöld A E (1863): Om tantalitartade mineralier från nejden af Torro. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 20, 443-453
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.
Banti, M., Banti, R., Sorlini, A. & Tonali, F. (2011). Il filone della Malpensata a Piona (LC). Un classico tra storia e novità. Rivista Mineralogica Italiana, 1/2011, 10-28; Vignola P., Fransolet A.-M., Guastoni A., Appiani R. (2011): Le pegmatiti di Piona. Recenti studi sui filoni Malpensata, Luna e Sommafiume. Riv. Mineral. Ital., 35, 1, 30-38.
    • Sondrio Province
      • Bodengo Valley
Guastoni, A., et al. (2007): [Title]. Mineralogical Magazine 71,579-585
      • Chiesa in Valmalenco
Bedognè, F., Montrasio, A., and Sciesa, E. (1993) I minerali della provincia di Sondrio: Valmalenco. Bettini, Sondrio, 275 pp.
  • 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.
        • Pizzo Marcio
Guastoni, A., Diella, V., Pezzotta, F., Demartin, F. (2007): Vigezzite and associated Nb-Ta oxides of emerald pegmatitic deposits of Vigezzo Valley (Western Alps, Italy). Crystallization Processes in Granitic Pegmatites - International Meeting. Cavoli, Elba Island, Italy, 23rd-29th May 2005. Abstracts; http://www.minsocam.org/msa/Special/Pig/PIG_Articles/Elba%20Abstracts%2010%20Guastoni.pdf; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.; Guastoni, A., Diella, V., Pezzotta, F. (2008): Vigezzite and associated oxides of Nb–Ta from emerald-bearing pegmatites of the Vigezzo valley, Western Alps, Italy. Canadian Mineralogist, 46, 619-633; Guastoni, A. (2011): Pizzo Marcio e Alpe Rosso. Genesi delle pegmatiti albitizzate e dei minerali di niobio e tantalio. Riv. Miner. Ital., 35, 4 (4-2011), 246-253; Guastoni, A. (2012): LCT (lithium, cesium, tantalum) and NYF (niobium, yttrium, fluorine) pegmatites in the Central Alps. Proxies of exhumation history of the Alpine nappe stack in the Lepontine Dome. Ph.D. Thesis. University of Padova, Dept. of Geosciences, 159 pp.; Boscardin, M., Mattioli, V., Rocchetti, I. (2013): Minerali della Valle Vigezzo. Litotipografia Alcione, Lavis (Trento), 229 pp.
Callegari A., Vanini F., 2002. La fersmite della pegmatite di Rio Graia. Riv. Mineral. Ital., 26 (4): 212-215.
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.
Mozambique
 
  • Zambezia Province
    • Alto Ligonha District
Dias, M. Bettencourt and Wilson, W. E., 2000, Mineralogical Record, 31:459-497.
Dias, M. Bettencourt and Wilson, W. E., 2000, Mineralogical Record, 31:459-497.
Dias, M. Bettencourt and Wilson, W. E., 2000, Mineralogical Record, 31:459-497.
Portugal
 
  • Castelo Branco
    • Idanha-a-Nova
      • Segura
Antunes, I. M. H. R., Neiva, A. M. R., Ramos, J. M. F., Silva, P. B., Silva, M. M. V. G., & Corfu, F. (2013). Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal). Chemie der Erde-Geochemistry, 73(3), 323-341.
Slovakia
 
  • Bratislava Region
    • Bratislava
      • Bratislava
        • 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
      • 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.
  • 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 Africa
 
  • Limpopo
    • Waterberg District
      • Naboomspruit (Mookgophong)
Atanasova, M., Cairncross, B. and Windisch, W.R. (2016) Microminerals of the Bushveld Complex, South Africa. Popular Geoscience Series 6, Council for Geoscience, Pretoria, South Africa, 79 pg
Spain
 
  • Galicia
    • Orense (Ourense)
      • Viana do Bolo
Alfonso, P., Hamid, S. A., García-Vallès, M., Llorens, T., Moro, F. L., Tomasa, O., ... & Parcerisa, D. (2018). Textural and mineral-chemistry constraints on columbite-group minerals in the Penouta deposit: evidence from magmatic and fluid-related processes. Mineralogical Magazine, 82(S1), S199-S222.
Sweden
 
  • Stockholm County
    • Sigtuna
      • Arlanda
No reference listed
  • Västerbotten County
    • Skellefteå
Cerny et al. (2004) Am. Min. 89, 505-518
Switzerland
 
  • Ticino
    • Locarno
      • Brissago
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 164.
    • Riviera
      • Riviera
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 164.
USA
 
  • Arizona
    • Yavapai Co.
      • Bradshaw Mts (Bradshaw Range)
        • Castle Creek Mining District
          • Castle Creek
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 221-222.
  • California
    • San Diego County
      • Warner Springs Mining District
        • Warner Springs
Rocks & Minerals, May-June 2003 ; Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 44
  • Colorado
    • Moffat Co.
      • Great Divide Area
Minerals of Colorado (1997) Eckel, E. B.
    • Park Co.
      • Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale)
Minerals of Colorado (1997) Eckel, E. B.
  • Connecticut
    • Middlesex Co.
      • East Hampton (Chatham)
Leif DiValentino collection, Harold Moritz collection
  • Maine
    • Oxford County
      • Buckfield
MinRec. 25(3):175-184
      • Peru
Dionne, Dick & Birtic, Cal & Jacobson, Mark. (2014) The Perry petalite prospect of Peru, Maine.. Mineral News. 30. 6,8,9,11,13.
    • Sagadahoc Co.
      • Topsham
King, V. and Foord, E., 1994, Mineralogy of Maine.
  • Michigan
    • Dickinson Co.
      • Randville
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
Whitmore & Lawrence, 2004. The Pegmatite Mines Known As Palermo, p. 96.
  • North Carolina
    • Yancey Co.
      • Spruce Pine Mining District
        • Burnsville
          • Hurricane Mountain
"Mineralogy and History of the Ray Mica Mine, Yancey County, NC"
  • Wisconsin
    • Florence Co.
      • Fern
Alexander Falster, William Simmons, Karen Webber (2018) Anatectic origin of the post-Penokean Li-Cs-Ta-enriched pegmatites in Florence County, Wisconsin, USA. in abstracts of the 22nd IMA Meeting Melbourne p 278
    • Marathon Co.
      • Wausau Intrusive Complex
        • Nine Mile pluton
Rocks & Min. (2007) 82:233
 
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