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Kobeite-(Y)

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Formula:
(Y,Zr)2(Ti,Fe3+)2(O,OH)7
Hardness:
This page provides mineralogical data about Kobeite-(Y).

Classification of Kobeite-(Y)

Approved
4.DG.05

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
8.3.12.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.4.7

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

Physical Properties of Kobeite-(Y)

Hardness (Mohs):

Chemical Properties of Kobeite-(Y)

Formula:
(Y,Zr)2(Ti,Fe3+)2(O,OH)7
Essential elements:
All elements listed in formula:

Relationship of Kobeite-(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.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.10Yttrotantalite-(Y)(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
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
18.4.3Yttrotantalite-(Y)(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
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
18.4.8Polycrase-(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 Kobeite-(Y)

Name in Other Languages:
Japanese:河辺石

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 Kobeite-(Y)

Reference List:
American Mineralogist (1957): 42: 342.

Mineralogical Journal (Japan) (1961): 3: 139.

Internet Links for Kobeite-(Y)

Localities for Kobeite-(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.
Austria
 
  • Lower Austria
    • Industrieviertel
      • Gloggnitz
        • Schlossberg
Brandstätter, F. & Niedermayr, G. (1998): Kobeit-(Y) aus dem Riebeckitgneis- Steinbruch bei Gloggnitz, NÖ. Mineralien-Welt, 9 (03), 42; Brandstätter, F. & Niedermayr, G. (1998) Carinthia II; Collection of Natural History Museum, Vienna; U. Kolitsch (reinvestigation, to be published)
Japan
 
  • Honshu Island
    • Chugoku Region
      • Hiroshima Prefecture
        • Hiroshima City
          • Hataga
P.M. Kartashov data
alfredo petrov specimens
    • Kinki region
      • Kyoto prefecture
        • Ohmiya town
          • Kobe
Journ.Geol.Soc.Japan (1950) 56, 509-519
  • Kyushu Region
    • Miyazaki prefecture
      • Hinokage-cho
Alfredo Petrov specimen
New Zealand
 
  • South Island
    • West Coast (Westland)
      • South Westland
        • Paringa River
Hutton, C.O. (1957), Kobeite from Paringa River, South Westland, New Zealand, Am.Min.: 42: 342-353.
Norway
 
  • Telemark
    • Nome
Åmli,R. (1974): Rapport, Mineralogisk-Geologisk Museum. Mineralogiske og geokjemiske undersøkelser vedrørende scandium, niob og sjeldne jordarter i Fensfeltet, Ulefoss( p. 49) Cited in Neumann, H. (1985): Norges Mineraler. Norges Geologiske Undersøkelse Skrifter 68, p. 81.
Mineral and/or Locality  
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