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Tapiolite

Big Photo

Sundrum Mine, Golconda District, Governador Valadares, Doce valley, Minas Gerais, Southeast Region, Brazil
© Christian Bracke

Show Tapiolite Photos (2)
Formula:
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
System:TetragonalHardness:6 - 6½
Name:After an ancient Finnish divinity.


A group name for Ferrotapiolite-Manganotapiolite series.

The original tapiolite material came from Sukula, Tammela, Etelä-Suomen Lääni, Finland.

Classification of Tapiolite

Hey's CIM Ref.:18.1.46

18 : Niobates and Tantalates
1 : Niobates and tantalates containing neither rare earths nor U
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Physical Properties of Tapiolite

Hardness (Mohs):6 - 6½

Crystallography of Tapiolite

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Morphology:Short prismatic [001] or equant, with {001}, {100}, {110} and {113} usually well developed. Untwinned crystals often appear monoclinic or orthorhombic due to distortion.
Twinning:On {013}, very common. The twins are distorted by elongation on [0_31] (parallel to an adjacent pair of 113 faces) and simulate orthorhombic symmetry. Also twinned on {101}, rare.

Chemical Properties of Tapiolite

Formula:
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
Essential elements:Fe, O, Ta
All elements listed in formula:Fe, Mn, Nb, O, Ta

Relationship of Tapiolite to other Species

Related Minerals - Hey's Index Grouping:

- +
18.1.1Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
18.1.2Lueshite
NaNbO
 
3
18.1.3Natroniobite
NaNbO
 
3
18.1.4Franconite
Na
 
2
Nb
 
4
O
 
11
·9H
 
2
O
18.1.5Natrotantite
Na
 
2
Ta
 
4
O
 
11
18.1.6Irtyshite
Na
 
2
(Ta,Nb)
 
4
O
 
11
18.1.7Rankamaite
(Na,K,Pb,Li)
 
3
(Ta,Nb,Al)
 
11
(O,OH)
 
30
18.1.8Kalipyrochlore
(K,Sr)
 
2-x
Nb
 
2
O
 
6
(O,OH)·nH
 
2
O
18.1.9Calciotantite
CaTa
 
4
O
 
11
18.1.10Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
18.1.11Microlite
(Ca,Na)
 
2
Ta
 
2
O
 
6
(O,OH,F)
18.1.12Belyankinite
Ca
 
1-2
(Ti,Zr,Nb)
 
5
O
 
12
 · 9H
 
2
O (?)
18.1.13Latrappite
(Ca,Na)(Nb,Ti,Fe)O
 
3
18.1.14Hochelagaite
(Ca,Na,Sr)(Nb,Ti,Si,Al)
 
4
O
 
11
·8H
 
2
O
18.1.15Bariomicrolite
Ba(Ta,Nb)
 
2
(O,OH)
 
7
18.1.16Parabariomicrolite
BaTa
 
4
O
 
10
(OH)
 
2
·2H
 
2
O
18.1.17Bariopyrochlore
(Ba,Sr)
 
2
(Nb,Ti)
 
2
(O,OH)
 
7
18.1.18Alumotantite
AlTaO
 
4
18.1.19Simpsonite
Al
 
4
(Ta,Nb)
 
3
O
 
13
(OH,F)
18.1.20Sosedkoite
(K,Na)
 
5
Al
 
2
(Ta,Nb)
 
22
O
 
60
18.1.21Thoreaulite
SnTa
 
2
O
 
6
18.1.22Stannomicrolite
(Sn,Fe,Mn)
 
2
(Ta,Nb,Sn)
 
2
(O,OH)
 
7
18.1.23Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
18.1.24Changbaiite
PbNb
 
2
O
 
6
18.1.25Plumbopyrochlore
(Pb,Y,U,Ca)
 
2-x
Nb
 
2
O
 
6
(OH)
18.1.26Plumbomicrolite
(Pb,Ca,U)
 
2
Ta
 
2
O
 
6
(OH)
18.1.27Stibiocolumbite
Sb(Nb,Ta)O
 
4
18.1.28Stibiotantalite
Sb(Ta,Nb)O
 
4
18.1.29Natrobistantite
(Na,Cs)Bi(Ta,Nb,Sb)
 
4
O
 
12
18.1.30Cesplumtantite
(Cs,Na)
 
2
(Pb,Sb
3+
 
)
 
3
Ta
 
8
O
 
24
18.1.31Stibiomicrolite
(Sb,Ca,Na)
 
2
(Ta,Nb)
 
2
O
 
7
18.1.32Cesstibtantite
(Cs,Na)SbTa
 
4
O
 
12
18.1.33 Stibobetafite
(Ca,Sb)
 
2
(Ti,Nb,Ta)
 
2
(O,OH)
 
7
18.1.34Bismutotantalite
Bi(Ta,Nb)O
 
4
18.1.35Bismutomicrolite
(Bi,Ca)(Ta,Nb)
 
2
O
 
6
(OH)
18.1.36Tantalite-(Mn)
MnTa
 
2
O
 
6
18.1.37Gerasimovskite
(Mn,Ca)(Nb,Ti)
 
5
O
 
12
·9H
 
2
O
18.1.38Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
18.1.39Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
18.1.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
18.1.41Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
18.1.42Columbite-(Fe)
FeNb
 
2
O
 
6
18.1.43Tantalite-(Fe)
FeTa
 
2
O
 
6
18.1.44Columbite
(Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.45Tantalite
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.47Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
18.1.48Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
18.1.50Strüverite
(Ti,Ta,Fe)O
 
2
18.1.51 Staringite
(Fe,Mn)
 
x
(Ta,Nb)
 
2x
Sn
 
6-3x
O
 
12

Other Names for Tapiolite

Synonyms:
FinbotantalitePolyrutileSgokböliteSkogböliteTammela-tantalite
Tantalite (of Arppe)Tantalit mit zimtbraunem Pulver
Other Languages:
German:Finbotantalit
Polyrutil
Sgokbölit
Skogbölit
Tapiolit
Spanish:Finbotantalita
Sgokbölita
Skogbölita
Tapiolita

Other Information

Health Warning: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

Reference List:Nordenskiöld (1863), Ak. Stockholm, Öfv.: 20: 445.

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: 775-778.

Geological Society of Finland, Bulletin 55 (1983), 101.

American Mineralogist (1985): 70: 217.

Canadian Mineralogist (1996): 34: 631.

Articles/Blogs about Tapiolite

Internet Links for Tapiolite

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    Localities for Tapiolite

    Hide Locality List
    The 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.
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    (TL) indicates type locality. ? 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
      • Nevados de Palermo
    Australia
     
    • Western Australia
      • Pilbara Region
    		AmMin 13:457
    Brazil
     
    • Northeast Region
      • Rio Grande do Norte
        • Borborema mineral province
          • Parelhas
    		Rob Lavinsky
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Divino das Laranjeiras
            • Linópolis
    		[MinRec 14:233]
          • Governador Valadares
            • Golconda District
    		found by Christian Bracke.
    Canada
     
    • Manitoba
      • Lac-du-Bonnet area
        • Bernic Lake
    • Nova Scotia
      • Lunenberg Co.
        • New Ross
    		 http://is2.dal.ca/~dommelen/NewRoss.html.
    China
     
    • Fujian Province
      • Nanping Prefecture
        • Zhenghe Co.
    		http://www.commerceresources.com/i/pdf/09-Chap10.pdf
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
    		Lapis 23(4), 18-34 (1998)
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Maršíkov
    		Novák, M.: Maršíkov - Scheibengraben. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 38-41.
    Finland
     
    • Etelä-Suomen Lääni
      • Tammela
    		[Clark, 1993 - "Hey's Mineral Index"]
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Weißenstadt
            • Großer Waldstein Mt.
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Wittern: "Mineralfundorte in Deutschland", 2001
            • Rudolfstein Mt.
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Ossola Valley
          • Vigezzo Valley
            • Trontano
    		Vittorio Mattioli (1976) - Località mineralogiche consigliate: Rio Graja, Trontano, Valle Vigezzo - in Notiziario del Gruppo Min. Lombardo - Vol. 2, Jun. 1976 pp. 40-42
    Madagascar
     
    • Mahajanga (Majunga) Province
      • Betsiboka Region
        • Tsaratanàna Department
    		J.Behier: Carte mineralogique de Madagascar. Archive Serv. Geol.Mad. A 1871
    Namibia
     
    • Erongo Region
      • Swakopmund District
        • Cape Cross area
    		http://www.mineral.tu-freiberg.de/econgeology/lehre/namibia/snlipegm/snlipegm_2_4.html
    • Kunene Region
      • Damaraland District
        • Uis (Groot Uis)
    Norway
     
    • Aust-Agder
    		Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 73).
    • Østfold
    		Broegger, W. (1883): Die Mineralien der Pegmatitgänge bei Moss, Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 80-81
      • Råde
    		Brøgger (1897); Neumann (1985, p. 73).
    Pakistan
     
    • Northern Areas
      • Baltistan
        • Skardu District
          • Haramosh Mts.
    		Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut); Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    Dudley Blauwet, Bill Smith and Carol Smith (2004) Table of mineral localities of the northern areas of Pakistan and other selected sites. (in "Pakistan: Minerals, Mountains & Majesty", Lapis International, East Hampton, Connecticut)
    Slovakia
     
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
        • Hnilec
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    South Africa
     
    • Northern Cape Province
      • Namaqualand
    		Minerals of South Africa
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Misox (Mesolcina Valley)
        • Lumino
          • Monticello
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 164.
    Ukraine
     
    • Donets'k Oblast' (Donetsk Oblast')
      • Donets (Donetsk) region
        • Priazovye
          • Eliseevka
            • Eliseevskoe pegmatite field
    		Lazarenko E.K. e.a. Mineralogy of Priazovie, - Kiev, "Naukova Dumka", 1981, p. 432.
    USA
     
    • Alabama
      • Coosa Co.
        • Rockford District
    		Rocks & Min 70:5 pp 320-333
    • Connecticut
      • Middlesex Co.
        • Portland
    		Rocks & Min.:64:471.
    • Maine
      • Oxford Co.
        • Newry
    		No reference listed
    "Mineralogy of Maine, Vol. 1" by King, V.T. & Foord, E.E., Maine Geological Survey, 1994
        • Paris
    		No reference listed
      • Sagadahoc Co.
        • Topsham
    		No reference listed
    • South Dakota
      • Custer Co.
        • Custer District
          • Custer
    		R&M 75:3 pp 156-169
      • Pennington Co.
        • Keystone District
    		R&M 75:3 pp 156-169; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 32 (Table A-1).
          • Keystone
    		Rocks & Minerals: 67(6): 380-388.
    (Chris van Laer, by x-ray diffraction, unpublished)
    Am Min 70:9-10 pp 1044-1049
    • Virginia
      • Powhatan Co.
        • Flat Rock
    		Minerals of Virginia 1990 by R. V. Dietrich
    • Wisconsin
      • Marathon Co.
        • Wausau pluton
          • "Rotten granite" quarries
    		www.uwrf.edu/~wc01
    • Wyoming
    		Rocks&Min 76:23-241
    Rocks & Minerals 76:386
    Zimbabwe
     
    • Masvingo
      • Masvingo (Fort Victoria)
        • Bikita
    		J. W. Anthony et al.: Handbook of Mineralogy, Vol. III (1997)
    Mineral and/or Locality
    Google
     
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