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Tapiolite-(Fe)

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Formula:
Fe2+Ta2O6
System:
Tetragonal
Colour:
Black
Lustre:
Sub-Adamantine, Metallic, Sub-Metallic
Hardness:
6 - 6½
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 ferrotapiolite in 1983 to distinguish it from manganotapiolite. Later renamed tapiolite-(Fe).

Classification of Tapiolite-(Fe)

Approved, 'Grandfathered' (first described prior to 1959)
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)

Sub-Adamantine, Metallic, Sub-Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Black
Streak:
Brownish black
Hardness (Mohs):
6 - 6½
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)

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)

IMA Formula:
Fe2+Ta2O6
Elements listed in formula:

Crystallography of Tapiolite-(Fe)

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P42/mnm
Cell Parameters:
a = 4.762Å, b = 4.762Å, c = 9.272Å
Ratio:
a:b:c = 1 : 1 : 1.947
Unit Cell Volume:
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 Diffraction Data:
d-spacingIntensity
4.22 (30)
3.36 (100)
2.58 (90)
2.38 (30)
1.746 (70)
1.680 (30)
1.502 (20)
1.407 (30)
Comments:
23-1124

Occurrences of Tapiolite-(Fe)

Type Occurrence of Tapiolite-(Fe)

Geological Setting of Type Material:
Granite pegmatites.

Relationship of Tapiolite-(Fe) to other Species

Series:
Forms a series with Tapiolite-(Mn) (see here)
Member of:
Other Members of Group:
Tapiolite-(Mn)(Mn,Fe)(Ta,Nb)2O6
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-(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.35Tantalite-(Fe)Fe2+Ta2O6
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
18.1.43Tantalite-(Fe)Fe2+Ta2O6
18.1.44Columbite
18.1.45Tantalite(Mn,Fe)(Ta,Nb)2O6
18.1.46Tapiolite(Fe,Mn)(Ta,Nb)2O6
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 Tapiolite-(Fe)

Name in Other Languages:

Other Information

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)

Reference List:
Nordenskiöld, A. E. (1863): Om tantalitartade mineralier från nejden af Torro. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 20, 443-453

Canadian Mineralogist. 34: 631-647.

Zema, M.; Tarantino, S. C.; Giorgiani, A. (2006): Structural changes induced by cation ordering in ferrotapiolite. Mineralogical Magazine. 70, 319-328.

Internet Links for Tapiolite-(Fe)

mindat.org URL:
https://www.mindat.org/min-1531.html
Please feel free to link to this page.

Localities for Tapiolite-(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
 
  • Salta
    • 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
    • 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).
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
    • Divino das Laranjeiras
Luis Menezes
    • Galiléia
      • Sapucaia do Norte
Rick Dalrymple
Ron Gyllenhammer Collection, Luiz Menezes Label
  • Paraíba
    • Borborema mineral province
      • 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
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
    • Borborema mineral province
      • 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
    • Bird River Greenstone Belt
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.
    • Lac-du-Bonnet area
      • Bernic Lake
American Mineralogist, Volume 94, pages 439–450, 2009
  • Northwest Territories
    • Yellowknife Pegmatite field
Wise, M. and Cerny, P., 1990, Beusite-Triphylite Intergrowths from theYellowknife Pegmatite Field, Northwest Territories, Canadian Mineralogist, v. 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 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.; 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.
  • Xinjiang Autonomous Region
    • 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
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
        • Krásno (Schönfeld)
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.
    • 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)
        • 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.
Egypt
 
  • Red Sea Governorate
    • 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 Region
    • Inari
kojonen, K, Lahti, S. I. and Melcher, F. 2012. Lemmenjoen niobi-tantaalimineraalit. In: Geologian Tutkimuskeskus SMS 55-juhlaseminaari abstraktivolyymi
  • Southern Finland Region
    • 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
  • Southwestern Finland Region
    • Kemiö Island (Kimito 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
  • 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.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
    • 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
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
      • Valchiavenna
        • Bodengo Valley
Guastoni, A., et al. (2007): [Title]. Mineralogical Magazine 71,579-585
  • 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.
          • Trontano
Callegari A., Vanini F., 2002. La fersmite della pegmatite di Rio Graia. Riv. Mineral. Ital., 26 (4): 212-215.
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.
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 District
    • 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 Co.
      • 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 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
      • 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 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.
Sweden
 
  • Uppland
    • Sigtuna
      • Arlanda
No reference listed
  • Västerbotten
    • Skellefteå
Cerny et al. (2004) Am. Min. 89, 505-518
Switzerland
 
  • Ticino (Tessin)
    • Lago Maggiore
      • Brissago
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 164.
    • 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 District
          • Castle Creek
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 221-222.
  • California
    • San Diego Co.
      • Warner Springs 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) Eckels, E. B.
    • Park Co.
      • Lake George (Badger Flats) Beryllium Area (Mountain Dale)
Minerals of Colorado (1997) Eckels, E. B.
  • Connecticut
    • Middlesex Co.
      • East Hampton (Chatham)
Leif DiValentino collection
  • Maine
    • Oxford Co.
      • Buckfield
MinRec. 25(3):175-184
      • Peru
No reference listed
    • Sagadahoc Co.
      • Topsham
King, V. and Foord, E., 1994, Mineralogy of Maine.
  • Michigan
    • Dickinson Co.
      • Menominee iron range
        • 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 District
        • Burnsville
          • Hurricane Mountain
"Mineralogy and History of the Ray Mica Mine, Yancey County, NC"
  • Wisconsin
    • Marathon Co.
      • Wausau Intrusive Complex
        • Nine Mile pluton
Rocks & Min. (2007) 82:233
Mineral and/or Locality  
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