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Yttrotantalite-(Y)

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Formula:
(Y,Ca,U
4+
 
,Fe
2+
 
)
 
2
(Ta,Nb)
 
2
O
 
8
System:OrthorhombicColour:Brown-black to black
Hardness:5 - 5½
Name:Named after its chemical composition containing yttrium and its similarity to Tantalite.

Classification of Yttrotantalite-(Y)

IMA status:Approved
Strunz 8th edition ID:4/D.19-90
Nickel-Strunz 10th (pending) edition ID:4.DG.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
Dana 8th edition ID:8.1.3.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
Hey's CIM Ref.:18.4.3

18 : Niobates and Tantalates
4 : Niobates and tantalates containing both U and rare earths
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Type Occurrence of Yttrotantalite-(Y)

Type Locality:Ytterby, Resarö, Vaxholm, Uppland, Sweden

Physical Properties of Yttrotantalite-(Y)

Lustre:Vitreous, Greasy, Sub-Metallic
Colour:Brown-black to black
Streak:Grey
Hardness (Mohs):5 - 5½
Cleavage:Poor/Indistinct
On {010}.
Fracture:Conchoidal
Density (measured):5.5 - 5.9 g/cm3

Crystallography of Yttrotantalite-(Y)

Crystal System:Orthorhombic
Cell Parameters:a = 5.34Å, b = 10.94Å, c = 5.07Å
Ratio:a:b:c = 0.488 : 1 : 0.463
Unit Cell Volume:V 296.19 ų (Calculated from Unit Cell)
Morphology:Prismatic [001] with {110} and {010} prominent; also tabular {010}.
Comment:Metamict. Space group not determined.
X-Ray Powder Diffraction:
d-spacingIntensity
2.95 (10)
2.56 (6)
1.81 (9)
1.55 (9)
1.183 (6)
1.152 (6)
1.053 (5)
Comments:After heating at 1000°C for one hour.

Optical Data of Yttrotantalite-(Y)

Type:Isotropic

Chemical Properties of Yttrotantalite-(Y)

Formula:
(Y,Ca,U
4+
 
,Fe
2+
 
)
 
2
(Ta,Nb)
 
2
O
 
8
Simplified for copy/paste:(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
Essential elements:O, Ta, Y
All elements listed in formula:Ca, Fe, Nb, O, Ta, U, Y
Common Impurities:Nb

Relationship of Yttrotantalite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DG.05Euxenite-(Y)
(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)
 
2
O
 
6
4.DG.05Fersmite
(Ca,Y)(Nb,Ta,Ti)
 
2
(O,OH)
 
6
4.DG.05Kobeite-(Y)
(Y,Zr)
 
2
(Ti,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DG.05Loranskite-(Y)
(Y,Ce,Ca)ZrTaO
 
6
(?)
4.DG.05Polycrase-(Y)
(Y,U)(Ti,Nb)
 
2
O
 
6
4.DG.05Tanteuxenite-(Y)
(Y,Ce,Ca)(Ta,Nb,Ti)
 
2
(O,OH)
 
6
4.DG.05Uranopolycrase
(U
4+
 
,Y)(Ti,Nb)
 
2
O
 
6
4.DG.05Yttrocrasite-(Y)
(Y,Th,Ca,U)(Ti,Fe)
 
2
(O,OH)
 
6
4.DG.10β-Fergusonite-(Y)
YNbO
 
4
4.DG.10β-Fergusonite-(Nd)
(Nd,Ce)NbO
 
4
4.DG.10β-Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
4.DG.10Beta-Fergusonite-(Nd)
4.DG.15Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
4.DG.15Thoreaulite
(Sn
2+
 
,Pb)(Ta,Nb)
 
2
O
 
6
4.DG.20Raspite
Pb(WO
 
4
)
Related Minerals - Hey's Index Grouping:

- +
18.4.1Uranpyrochlore (of Hogarth 1977)
(U,Ca,Ce)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
18.4.2Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
18.4.4Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
18.4.5Euxenite-(Y)
(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)
 
2
O
 
6
18.4.6Tanteuxenite-(Y)
(Y,Ce,Ca)(Ta,Nb,Ti)
 
2
(O,OH)
 
6
18.4.7Kobeite-(Y)
(Y,Zr)
 
2
(Ti,Fe
3+
 
)
 
2
(O,OH)
 
7
18.4.8Polycrase-(Y)
(Y,U)(Ti,Nb)
 
2
O
 
6
18.4.9Yttropyrochlore (of Hogarth 1977)
18.4.10Calciobetafite (of Mazzi & Munno)
18.4.11Yttrobetafite (of Hogarth 1977)
18.4.12Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8

Other Names for Yttrotantalite-(Y)

Synonyms:
Tantal oxidé yttrifèreYttroilmeniteYttrotantalite
Other Languages:
German:Schwarzer Yttrotantalit
Yttrotantalit
Japanese:イットロタンタル石
Simplified Chinese:钇钽铁矿
Spanish:Yttrotantalita
Swedish:Yttrotantal

Other Information

Health Warning:radioactive

References for Yttrotantalite-(Y)

Reference List:

- +
Hermann (1846), Journal. pr. Chem.: 38: 119.

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: 763-766.

Canadian Mineralogist (1957): 6: 72.

Mineralogical Magazine (1958): 31: 937.

Wolten, G.M. (1967) The structure of the M'-phase of YTaO4, a third fergusonite polymorph. Acta Crystallogr., 23, 939-944.


Internet Links for Yttrotantalite-(Y)

Search Engines:
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  • Look for Yttrotantalite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Yttrotantalite-(Y) details from Handbook of Mineralogy (PDF)
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  • Localities for Yttrotantalite-(Y)

    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.
    (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.
    Australia
     
    • Queensland
      • Mount Isa - Cloncurry area
        • Mary Kathleen district
    T.Kwak & P.Abeysinghe: "Rare earth and uranium minerals present as daughter crystals in fluid inclusions, Mary Kathleen U-REE skarn, Queensland, Australia: Min. Mag. 51,665-670(1987)
    • Western Australia
      • East Pilbara Shire
    Sue Koepke collection
    Pegmatites of Western Australia; M Jacobson, M Calderwood, B Grguric; Hesperian Press, Perth 2007
    Pegmatites of Western Australia; M Jacobson, M Calderwood, B Grguric; Hesperian Press, Perth, 2007.
    Canada
     
    • Manitoba
      • Bird River Greenstone Belt
    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.
    • Ontario
      • Nipissing District
        • Mattawan Township
    www.ontariominerals.com/onmins-xyz.htm.
    Germany
     
    • Saxony
      • Oberlausitz
        • Görlitz
          • Thiemendorf
    Witzke, T. & Giesler, T. (2013): Eine Seltenerd- und Niob-Tantal-Mineralisation aus dem Königshainer Granit in der Lausitz, Sachsen.- Mineralien-Welt 24(1), 36-45
    Japan
     
    • Honshu Island
      • Kinki Region
        • Shiga Prefecture
          • Otsu City
    Nagashima & Nagashima (1960) Nihon Kigenso Koubutsu, 230-231.
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
            • Iizaka Village (Iisaka)
    Van King specimen
          • Sukagawa City
    University of Tokyo collection
    Norway
     
    • Aust-Agder
      • Arendal
        • Helle
    Andersen, O. (1931): Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder. Norges Geologiske Undersøkelse 128b,1-109 [p.76]
      • Evje og Hornnes
    Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, 278 pp. p. 81
      • Froland
        • Mykland
    Rosenqvist, I.Th. (1949): Samarskit-yttrotantalit ved Bjortjenn i Mykland herred. Norsk Geologisk Tidsskrift. 28, 40-43
    Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p.81
      • Iveland
        • Ljosland
    Bjørlykke (1934, p. 262); Neumann (1985) : Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 81).; Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
    Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
        • Rossås (Rosås)
    Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
    Frigstad, O. F. (1968): En undersøkelse av cleavelandittsonerte pegmatittganger i Iveland-Evje, Nedre Setesdal. Hovedfagsoppgave (Thesis), University of Oslo p. 148
    • Østfold
      • Moss
        • Dillingøya (Dillingö)
    Bjørlykke, H. (1939): Feltspat V. De sjeldne mineraler på de norske granittiske pegmatittganger. Norges Geologiske Undersøkelse. 154. 77p. (p.35)
    Brøgger, W.C. (1906): Die Mineralien der Südnorwegischen Granitpegmatitgänge, I. Niobate, tantalate, titanate und titanoniobate. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1906, 6. 1-162 [p.152]
      • Råde
    Brøgger, W.C. (1906): Die Mineralien der Südnorwegischen Granitpegmatitgänge, I. Niobate, tantalate, titanate und titanoniobate. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1906, 6. 1-162 [p. 50]
    • Telemark
      • Drangedal
        • Tørdal
    Raade, G. & Kristiansen, R. (2000a): Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrifter. 17, 19-25
    Oftedal, I. (1942): Lepidolit-og tinnsteinsførende pegmatitt i Tørdal, Telemark. Norske Geologisk Tidsskrift 22: 1-14; Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68 pp. 80-81
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
    South Korea
     
    • Chungcheongnam-do (Ch'ungch'ong-namdo; Chungcheongnamdo)
      • Hongsong-gun
    Hideo Tsuda (1969) Supplement to "Minerals of Korea".
    Sweden
     
    • Bohuslän
      • Orust
    • Dalarna
      • Borlänge
        • St. Tuna
    Brotzen 1959, GFF 81, p. 285
      • Falun
    Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 1, 119.
    Berzelius, J.J. (1815): Afhandl. Fys. Kem. Min., 4, 262-93.; Kjellman (unpublished)
    GFF 1, 119
    Brotzen 1959, GFF 81, p. 286
    Brotzen 1959, GFF 81, p. 286
      • Ludvika
        • Grängesberg
    Brotzen 1959, GFF 81, p. 286
      • Säter
        • St. Skedevi
    No reference listed
    • Småland
      • Vetlanda
        • Alseda
          • Slättåkra
    H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997
    Swedish Nat.Musuem
    • Uppland
      • Norrtälje
        • Väddö
    Wilke, H.-J. (1997): Die Mineralien und Fundstellen von Schweden. Chr. Weise Verlag, München, 200 pp. (in German)
      • Österåker
    Nysten, P. (1996): Paragenetic setting and crystal chemistry of milarites from Proterozoic granitic pegmatites in Sweden. Neues Jahrbuch für Mineralogie, Monatshefte 1996, 564-576.
      • Vaxholm
    The Swedish Museum of Natural History collection # 19170504 (Axel Lindströms mineral collection)
        • Resarö
    [MinRec 2:137-138]; Ekeberg, KVA 1802, 68-83.
    • Värmland
      • Filipstad
        • Persberg District
          • Kroppa
    No reference listed
    • Västergötland
      • Ale
        • Nödinge
    Natural History Museum, Stockholm collection, inventory # g31354
      • Vänersborg
        • Väne Ryr
    Brotzen GFF 1961; Heinrich 1960, AZ Bur. of Mines Bull. 167: 12-18. Kjellman (unpublished data); Wallerius, I. D. (1932): Omvandlad pyrofysalit. Geologiska Föreningen i Stockholm Förhandlingar. 54, 279-280
    USA
     
    • Arizona
      • Mohave Co.
        • Aquarius Mts (Aquarius Range; Peacock Range)
    Heinrich, E. Wm. (1960), AZ Bur. of Mines Bull. 167: 12-18; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 429; Encyclopedia of Minerals, 2nd. ed.: 965.; Hanson, S.L., Simmons, W.B., Falster, A.U. (2006) 33rd Rochester Mineralogical Symposium, abstracts, 18-19.; Brown, TJ, "Geology & Geochemistry of the Kingman Feldspar, Rare Metals and Wagon Bow Pegmatites" (2010). University of New Orleans Theses and Dissertations. Paper 1280.
    • Colorado
      • El Paso Co.
    Rocks & Minerals (Sept. 2001)
      • Fremont Co.
        • Kuntz Gulch
    Minerals of Colorado (1997) E.B. Eckels
      • Jefferson Co.
        • Clear Creek pegmatite Province
    Minerals of Colorado (1997) Eckels, E. B.
        • South Platte Pegmatite District
    Mineralogical Record: 21: 429.
      • Park Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Teller Co.
    Seaman (1976) Pegmatite Minerals of the World.
    Minerals of Colorado (1997) E.B. Eckels
    • New Mexico
      • Rio Arriba Co.
    Northrop, Minerals of New Mexico, 3rd rev. Ed., 1996
          • Alamos area
    Minerals of New Mexico 3rd ed.
          • Cribbenville area
    Minerals of New Mexico 3rd ed.
          • La Jarita-Apache area
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
      • San Miguel Co.
    Northrop, Minerals of New Mexico, 3rd rev. ed, 1996
    Genth,F.A and Kerr,W.C,1881,Minerals and Mineral Localities of North Carolina,Geologic Survey,N.C
    Zimbabwe
     
    • Midlands
      • Kwekwe District (Que Que District)
    Gallagher, M.J. (1967): Phosphates and other minerals in pegmatites of Rhodesia and Uganda. Mineralogical Magazine. 36, 50-59
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