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Yttrotantalite-(Y)

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Formula:
(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
System:
Orthorhombic
Colour:
Brown-black to black
Hardness:
5 - 5½
Name:
Named after its chemical composition containing yttrium and its similarity to Tantalite.

Classification of Yttrotantalite-(Y)

Approved
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
8.1.3.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
18.4.3

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

Physical Properties of Yttrotantalite-(Y)

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

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 Data:
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,U4+,Fe2+)2(Ta,Nb)2O8
Essential elements:
All elements listed in formula:
Common Impurities:
Nb

Relationship of Yttrotantalite-(Y) to other Species

4.DG.05Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
4.DG.05Fersmite(Ca,Y)(Nb,Ta,Ti)2(O,OH)6
4.DG.05Kobeite-(Y)(Y,Zr)2(Ti,Fe3+)2(O,OH)7
4.DG.05Loranskite-(Y)(Y,Ce,Ca)ZrTaO6 (?)
4.DG.05Polycrase-(Y)(Y,U)(Ti,Nb)2O6
4.DG.05Tanteuxenite-(Y)(Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6
4.DG.05Uranopolycrase(U4+,Y)(Ti,Nb)2O6
4.DG.05Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
4.DG.10Fergusonite-(Y)-βYNbO4
4.DG.10Fergusonite-(Nd)-β(Nd,Ce)NbO4
4.DG.10Fergusonite-(Ce)-β(Ce,La,Nd)NbO4
4.DG.10Beta-Fergusonite-(Nd)
4.DG.15Foordite(Sn,Pb)(Nb,Ta)2O6
4.DG.15Thoreaulite(Sn2+,Pb)(Ta,Nb)2O6
4.DG.20RaspitePb(WO4)
18.4.1Uranpyrochlore (of Hogarth 1977)(U,Ca,Ce)2(Nb,Ta)2O6(OH,F)
18.4.2Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
18.4.4IshikawaiteU4+Fe2+Nb2O8
18.4.5Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
18.4.6Tanteuxenite-(Y)(Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6
18.4.7Kobeite-(Y)(Y,Zr)2(Ti,Fe3+)2(O,OH)7
18.4.8Polycrase-(Y)(Y,U)(Ti,Nb)2O6
18.4.9Yttropyrochlore (of Hogarth 1977)
18.4.10Calciobetafite (of Mazzi & Munno)
18.4.11Yttrobetafite (of Hogarth 1977)
18.4.12Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8

Other Names for Yttrotantalite-(Y)

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 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)

Localities for Yttrotantalite-(Y)

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.
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.
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
    • 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
Mineral and/or Locality  
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