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Fergusonite-(Nd)

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About Fergusonite-(Nd)Hide

Robert Ferguson
Formula:
(Nd,Ce)(Nb,Ti)O4
Hardness:
5½ - 6½
Name:
For its relation to fergusonite-(Y), and its dominant neodymium content. Named after Robert Ferguson (8 September 1769 – 3 December 1840, London, England), Scottish landowner, politician and mineral collector.
Originally described from Bayan Obo (Bayun-Obo; Baiyunebo) deposit, Bayan Obo, Darhan Muminggan United Banner, Baotou League, Nei Mongol Autonomous Region (Inner Mongolia), China.


Classification of Fergusonite-(Nd)Hide

Notes:
Unnamed (probably valid)
Approval History:
Unnamed, but probably valid.
7.GA.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
A : Without additional anions or H2O
8.1.1.4

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
18.2.5

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U

Physical Properties of Fergusonite-(Nd)Hide

Hardness:
5½ - 6½ on Mohs scale

Optical Data of Fergusonite-(Nd)Hide

Type:
Uniaxial (-)
RI values:
nω = 2.300 nε = 2.200
Max Birefringence:
δ = 0.100
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Fergusonite-(Nd)Hide

Formula:
(Nd,Ce)(Nb,Ti)O4

Other Language Names for Fergusonite-(Nd)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Fergusonite-(Y)1 photo of Fergusonite-(Nd) associated with Fergusonite-(Y) on mindat.org.
Ferriallanite-(Ce)1 photo of Fergusonite-(Nd) associated with Ferriallanite-(Ce) on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.GA.05Fergusonite-(Ce)(Ce,La,Nd)NbO4
7.GA.05Fergusonite-(Y)YNbO4Tet. 4/m : I41/a
7.GA.05PowelliteCa(MoO4)Tet. 4/m : I41/a
7.GA.05ScheeliteCa(WO4)Tet. 4/m : I41/a
7.GA.05StolzitePb(WO4)Tet. 4/m : I41/a
7.GA.05WulfenitePb(MoO4)Tet. 4/m : I41/a
7.GA.10Formanite-(Y)YTaO4Tet. 4/m : I41/a
7.GA.10Iwashiroite-(Y)Y(Ta,Nb)O4Mon. 2/m : P2/b
7.GA.15Paraniite-(Y)Ca2Y(AsO4)(WO4)2Tet. 4/m : I41/a

Related Minerals - Dana Grouping (8th Ed.)Hide

8.1.1.1Fergusonite-(Y)YNbO4Tet. 4/m : I41/a
8.1.1.2Formanite-(Y)YTaO4Tet. 4/m : I41/a
8.1.1.3Fergusonite-(Ce)(Ce,La,Nd)NbO4

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

18.2.1Fergusonite-(Y)YNbO4Tet. 4/m : I41/a
18.2.2Fergusonite-(Y)-βYNbO4Mon. 2/m
18.2.3Fergusonite-(Ce)(Ce,La,Nd)NbO4
18.2.4Fergusonite-(Ce)-β(Ce,La,Nd)NbO4
18.2.6Fergusonite-(Nd)-β(Nd,Ce)NbO4
18.2.7Formanite-(Y)YTaO4Tet. 4/m : I41/a
18.2.8Pyrochlore GroupA2Nb2(O,OH)6Z
18.2.9Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.2.10Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.2.11Loparite-(Ce)(Na,REE)Ti2O6
18.2.12Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.2.13Aeschynite-(Ce)(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
18.2.14Aeschynite-(Nd)(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m)
18.2.15Aeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
18.2.16Nioboaeschynite-(Ce)(Ce,Ca)(Nb,Ti)2(O,OH)6Orth.
18.2.17Nioboaeschynite-(Nd)(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)2(O,OH)6Orth.
18.2.18Tantalaeschynite-(Y)Y(Ta,Ti,Nb)2O6Orth. mmm (2/m 2/m 2/m)
18.2.19Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6Orth.
18.2.20Murataite-(Y)(Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4 Iso. m3m (4/m 3 2/m) : Fm3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Fergusonite-(Nd)Hide

Localities for Fergusonite-(Nd)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Inner Mongolia Autonomous Region
    • Baotou League (Baotou Prefecture)
      • Bayan Obo mining district
        • Bayan Obo
Qingchang Meng (1981): Geology and Prospecting 17(3), 10-17
Zhang Peishan, Yang Zhuming, Tao Kejie, and Yang Xueming (1996): "Mineralogy and Geology of Rare Earths in China", Science Press (Beijing), 226 pp.
Mongolia
 
  • Hovd Aimag (Khovd Aimag)
    • Altai Mts
      • Khaldzan Buragtag massif
Pavel M. Kartashov analytical data (2012), specimens selfcollected in 1990, Macdonald R., Baginski B., Kartashov P., Zozulia D., Dzierzanowski P. Interaction of rare-metal minerals with hydrothermal fluids; evidence from quartz-epidote metasomatites of the Haldzan Buragtag massif, Mongolian Altai, - Can. Miner., 2015. v.53, pp. 1015-1034.
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Vitim Plateau
          • Biraya and Bya Rivers confluence area (Chara Basin)
Koneva A.A., Konev A.A., Vladykin N.V. (2010) Vein complex of the Biraya carbonatite deposit. in Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp.
Mills, S. J., Kartashov, P. M., Kampf, A. R., Konev, A. A., Koneva, A. A., & Raudsepp, M. (2012). Cordylite-(La), A New Mineral Species In Fenite From The Biraya Fe–Ree Deposit, Irkutsk, Russia. The Canadian Mineralogist, 50(5), 1281-1290.
Mineral and/or Locality  
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