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Tapiolite-(Fe)

A valid IMA mineral species - grandfathered
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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).
Type Locality:
ⓘTapiolite-(Fe) type locality, Kulmala, Sukula Pegmatites, Tammela, Kanta-Häme, Finland
Dimorph of:
Columbite-Tantalite
Tapiolite-(Fe)-Tapiolite-(Mn) Series.

Much more common thantapiolite-(Mn).


Unique Identifiers
First published:
1863
Type description reference:
Nordenskiöld, A.E. (1863) Om tantalitartade mineralier från nejden af Torro.Öfversigt af Kongl. vetenskaps-akademiens förhandlingar, 20. 443-453

Classification of Tapiolite-(Fe)

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
Dana 8th ed.:
8.3.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
Hey's CIM Ref.:
18.1.47

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

Mineral Symbols
Transparency:
Opaque
Colour:
Black
Streak:
Brownish black
Hardness:
6 - 6½ onMohs 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)
Surface Relief:
Moderate
Optical Extinction:
Parallel
Pleochroism:
Strong
Comments:
O = pale reddish brown, E nearly opaque

Chemistry of Tapiolite-(Fe)

Crystallography of Tapiolite-(Fe)
Geological Setting of Type Material:
Granite pegmatites.
Reference:
Nordenskiöld, A.E. (1863) Om tantalitartade mineralier från nejden af Torro.Öfversigt af Kongl. vetenskaps-akademiens förhandlingar, 20. 443-453

Synonyms of Tapiolite-(Fe)

Other Language Names for Tapiolite-(Fe)

Relationship of Tapiolite-(Fe) to other Species
Other Members of Tapiolite Group:
Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm(4/m2/m2/m) :P42/mnm
Forms a series with:
Tapiolite-(Mn)Tapiolite-(Fe)-Tapiolite-(Mn) Series

Common AssociatesMon. 2/m :P21/b4.DB.Nioboixiolite-(Mn2+)(Nb0.67Mn2+0.33)O2Orth.mmm(2/m2/m2/m) :Pbcn4.DB.Shakhdaraite-(Y)ScYNb2O8Mon. 2/m :P2/b4.DB.05VarlamoffiteSn1-xFexO2-x(OH)4.DB.05ArgutiteGeO2Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.05CassiteriteSnO2Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.05RutileTiO2Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.05PlattneritePbO2Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.05TripuhyiteFe3+Sb5+O4Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.05TugarinoviteMoO2Mon. 2/m :P21/b4.DB.05PyrolusiteMn4+O2Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.10ByströmiteMgSb2O6Tet. 4/mmm(4/m2/m2/m) :P4/nmm4.DB.10OrdoñeziteZnSb2O6Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.10TredouxiteNiSb2O6Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.10Tapiolite-(Mn)Mn2+Ta2O6Tet. 4/mmm(4/m2/m2/m) :P42/mnm4.DB.15aParamontroseiteV4+O2Orth.mmm(2/m2/m2/m)4.DB.15aRamsdelliteMn4+O2Orth.mmm(2/m2/m2/m)4.DB.15bAkhtenskiteε-Mn4+O2Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.DB.15cNsutite(Mn4+,Mn2+)(O,OH)2Hex.4.DB.20Scrutinyiteα-PbO2Orth.mmm(2/m2/m2/m) :Pbcn4.DB.20Nioboixiolite-([])(Nb0.8◻0.2)4+O2Orth.mmm(2/m2/m2/m) :Pbcn4.DB.25IshikawaiteU4+Fe2+Nb2O8Mon.4.DB.25Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O84.DB.25Calciosamarskite(Ca,U4+)Fe3+(Nb,Ta,Ti)2O8Orth.mmm(2/m2/m2/m)4.DB.25Samarskite-(Yb)YbFe3+(Nb,Ta)2O8Mon. 2/m :P2/b4.DB.25Ixiolite-(Fe2+)(Ta0.67Fe2+0.33)O2Orth.4.DB.25Ixiolite-(Mn2+)(Ta0.67Mn2+0.33)O2Orth.4.DB.25SrilankiteZrTi2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.25Samarskite-(Y)YFe3+Nb2O8Mon. 2/m :P2/b4.DB.25Nioboixiolite-(Fe3+)(Nb0.5Fe3+0.5)O2Orth.mmm(2/m2/m2/m) :Pbcn4.DB.30 vaWolframite Group4.DB.30Rossovskyite(Fe3+,Ta)(Nb,Ti)O4Mon. 2/m :P2/b4.DB.30HuanzalaiteMgWO4Mon. 2/m :P2/b4.DB.30HeftetjerniteScTaO4Mon. 2/m :P2/b4.DB.30HübneriteMnWO4Mon. 2/m :P2/b4.DB.30Sanmartinite(Zn,Fe)WO4Mon. 2/m :P21/b4.DB.30FerberiteFeWO4Mon. 2/m :P2/b4.DB.30KrasnoselskiteCoWO4Mon.4.DB.35Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.mmm(2/m2/m2/m)4.DB.35Tantalaeschynite-(Ce)Ce(TiTa)O6Orth.mmm(2/m2/m2/m) :Pnma4.DB.35Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.35Columbite-(Mn)Mn2+Nb2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.35Tantalite-(Mn)Mn2+Ta2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.35Columbite-(Fe)Fe2+Nb2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.35Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6Orth.4.DB.35Tantalite-(Fe)Fe2+Ta2O6Orth.mmm(2/m2/m2/m) :Pbcn4.DB.40FerrotitanowodginiteFe2+TiTa2O8Mon. 2/m :B2/b4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O84.DB.40LithiotantiteLiTa3O8Mon. 2/m :P21/b4.DB.40LithiowodginiteLiTa3O8Mon. 2/m :B2/b4.DB.40TitanowodginiteMn2+TiTa2O8Mon. 2/m :B2/b4.DB.40Tantalowodginite(Mn2+0.5◻0.5)TaTa2O8Mon. 2/m :B2/b4.DB.40WodginiteMn2+Sn4+Ta2O8Mon. 2/m :B2/b4.DB.40FerrowodginiteFe2+Sn4+Ta2O8Mon. 2/m :B2/b4.DB.45TivaniteV3+TiO3(OH)Mon. 2/m :P21/b4.DB.50Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]Mon. 2/m :P21/b4.DB.55AlumotantiteAlTaO4Orth.mmm(2/m2/m2/m) :Pbcn4.DB.60Biehlite((Sb,As)O)2[MoO4]Mon. 2/m :B2/b

Fluorescence of Tapiolite-(Fe)

Other Information
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    • References for Tapiolite-(Fe)ⓘEl Portezuelo GraniteColombo et al. (2011)López de Azarevich et al. (2021)Galliski et al. (2001)Galliski et al. (1999)+1 other referenceminsocam.org (2003)
    Australia
     
    Jacobson et al. (2007)Wise et al. (1996)Material originally from the Australian ...
    Austria
     
    Walter (1998)Niedermayr et al. (1995)
    Brazil
     
    Luis MenezesRick DalrympleRon Gyllenhammer CollectionBeurlen et al. (2008)Beurlen et al. (2008)Witzke et al. (2011)Lapis 3/2008 (ad)Pereira das Neves et al. (2018)Beurlen et al. (2005)+1 other referenceBeurlen et al. (2008)+1 other referenceBeurlen et al. (2008)Beurlen et al. (2008)Beurlen et al. (2008)Beurlen et al. (2008)Beurlen et al. (2008)Beurlen et al. (2008)Beurlen et al. (2008)Paul Bongaerts collection+1 other referenceBeurlen et al. (2008)
    Canada
     
    153-155.+2 other referencesMasau+3 other referencesWise et al. (1990)Breaksontariominerals.com+2 other referencesCanadian Mineralogist 36+1 other referenceTaylor et al. (2001)
    China
     
    Rao+7 other referencesZhang et al. 2004+1 other reference
    Czech Republic
     
    René et al. (2011)Novák+2 other referencesPavlíček V. et al.: Pegmatit ...
    DR Congo
     
    Loun et al. (2018)
    Egypt
     
    Fengjun Nie et al. (2013)
    Finland
     
    Ilkka Nmikkola collectionNordenskiöld (1863)kojonenLahti (2000)Lahti (2000)Lahti et al. (1983)Lahti (2000)+1 other referenceAlviolaClark et al. (1978)+1 other referenceClark et al. (1978)Jyrki Autio Collection 2018
    Germany
     
    Oberthür et al. (2016)
    Italy
     
    VIGNOLA et al. (2007)Banti et al. (2011)+1 other referenceGuastoni et al. (2007)Marchesini et al. (2025)+1 other referenceRoggiani (1970)+1 other referencePiccoli et al. (2007)Piccoli et al. (2007)Piccoli et al. (2007)+5 other referencesCallegari A. et al. (4)
    Ivory Coast
     
    Allou et al. (2005)Allou (2006)Assaoulé Benjamin Allou (2005)+1 other reference
    Mozambique
     
    Wilson et al. (2000)Wilson et al. (2000)Wilson et al. (2000)Wilson et al. (2000)
    Norway
     
    Kvamsdal (2023)
    Portugal
     
    Antunes et al. (2013)
    Russia
     
    ...
    Slovakia
     
    Chudík et al. (2011)Uher et al. (2006)Uher et al. (n.d.)Uher et al. (Považský Inovec)Uher P.+1 other reference
    South Africa
     
    Atanasova et al. (2016)
    Spain
     
    Dill et al. (2023)Dill et al. (2023)Alfonso et al. (2018)
    Sweden
     
    Cerny et al. (2004)
    Switzerland
     
    Gramaccioli (1975)+2 other referencesWeiß (1989)+1 other referenceStalder et al. (1998)
    USA
     
    Anthony et al. (1995)Rocks & Minerals+1 other referenceEckel et al. (1997)Eckel et al. (1997)Leif DiValentino collectionMinRec. 25 (3)Simmons et al. (2022)Dionne et al. (2014)King et al. (1994)Buchholz et al. (2014)Whitmore et al. (2004)"Mineralogy and History of the Ray Mica ...Alexander Falster et al. (2018)Rocks & Min. (2007)
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