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Fergusonite-(Ce)

Big Photo

Laach lake volcanic complex, Eifel Mts, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Show Fergusonite-(Ce) Photos (7)
Formula:
(Ce,La,Nd)NbO
 
4
Hardness:5½ - 6½
Name:After Robert Ferguson (1799-1865), Scottish physician.
This page provides mineralogical data about Fergusonite-(Ce).

Classification of Fergusonite-(Ce)

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/D.24-50
Nickel-Strunz 10th (pending) edition ID:7.GA.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
A : Without additional anions or H2O
Dana 8th edition ID:8.1.1.3

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
Hey's CIM Ref.:18.2.3

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U
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Type Occurrence of Fergusonite-(Ce)

Type Locality:Chernigovskaya Zone, Novopoltavskii Massif, Azov Sea Region, Zaporozh'e Oblast', Ukraine

Physical Properties of Fergusonite-(Ce)

Hardness (Mohs):5½ - 6½

Optical Data of Fergusonite-(Ce)

Type:Uniaxial (-)
RI values: nω = 2.300 nε = 2.200
Maximum Birefringence:δ = 0.100

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High

Chemical Properties of Fergusonite-(Ce)

Formula:
(Ce,La,Nd)NbO
 
4
Essential elements:Ce, Nb, O
All elements listed in formula:Ce, La, Nb, Nd, O

Relationship of Fergusonite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):
7.GA.05Fergusonite-(Nd)
(Nd,Ce)(Nb,Ti)O
 
4
7.GA.05Fergusonite-(Y)
YNbO
 
4
7.GA.05Formanite-(Y)
YTaO
 
4
7.GA.05Powellite
Ca[MoO
 
4
]
7.GA.05Scheelite
Ca[WO
 
4
]
7.GA.05Stolzite
Pb[WO
 
4
]
7.GA.05Wulfenite
Pb[MoO
 
4
]
7.GA.10Paraniite-(Y)
Ca
 
2
Y(AsO
 
4
)(WO
 
4
)
 
2
Related Minerals - Hey's Index Grouping:
18.2.1Fergusonite-(Y)
YNbO
 
4
18.2.2β-Fergusonite-(Y)
YNbO
 
4
18.2.4β-Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
18.2.5Fergusonite-(Nd)
(Nd,Ce)(Nb,Ti)O
 
4
18.2.6β-Fergusonite-(Nd)
(Nd,Ce)NbO
 
4
18.2.7Formanite-(Y)
YTaO
 
4
18.2.8Pyrochlore
(Ca,Na)
 
2
Nb
 
2
O
 
6
(OH,F)
18.2.9Ceriopyrochlore-(Ce)
(Ce,Ca,Y)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
18.2.10Strontiopyrochlore
(Sr,Ce,Ca)
 
0.66
(Nb,Fe)
 
2
(O,OH)
 
7
18.2.11Loparite-(Ce)
(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
 
3
18.2.12Fersmite
(Ca,Ce,Na)(Nb,Ta,Ti)
 
2
(O,OH,F)
 
6
18.2.13Aeschynite-(Ce)
(Ce,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.14Aeschynite-(Nd)
(Nd,Ce,Ca)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.15Aeschynite-(Y)
(Y,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
18.2.16Nioboaeschynite-(Ce)
(Ce,Ca,Th)(Nb,Ti)
 
2
(O,OH)
 
6
18.2.17Niobo-aeschynite-(Nd)
(Nd,Ce)(Nb,Ti)
 
2
(O,OH)
 
6
18.2.18Tantalaeschynite-(Y)
(Y,Ce,Ca)(Ta,Ti,Nb)
 
2
O
 
6
18.2.19Vigezzite
(Ca,Ce)(Nb,Ti)
 
2
O
 
6
18.2.20Murataite-(Y)
(Na,Y)
 
4
(Zn,Fe)
 
3
(Ti,Nb)
 
6
O
 
18
(F,OH)
 
4

Other Names for Fergusonite-(Ce)

German names:
β-Fergusonit-(Ce)Fergusonit-(Ce)
Russian names:
Фергусонит-(Ce)

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 Fergusonite-(Ce)

Reference List:American Mineralogist: 74: 946.

Internet Links for Fergusonite-(Ce)

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  • Raman and XRD data at RRUFF project
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  • Fergusonite-(Ce) details from Handbook of Mineralogy (PDF)
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    Localities for Fergusonite-(Ce)

    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.
    Algeria
     
    • Tamanghasset Province
      • Ahaggar Mts (Hoggar Mts)
    Canada
     
    • Ontario
      • Haliburton Co.
        • Cardiff Township
    		No reference listed
      • Nipissing District
        • Murchison Township
          • Madawaska
    		Frank Melanson (Hawthorneden) specimen
      • Renfrew Co.
        • Lyndoch Township
          • Quadeville
    		GSC paper 70-50
    China
     
    • Inner Mongolia Autonomous Region
      • Baotou League
        • Darhan Muminggan United Banner
          • Bayan Obo
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Laach lake volcanic complex
          • Kruft
    		Blass, G.; Graf, H.W., Neue Mineralien und Bestimmungen (17), Mineralien-Welt 8/2, 16, 1997
          • Mendig
            • Niedermendig
    		Blass, G.; Graf, H.W., Neue Mineralien und Bestimmungen (17) Mineralien-Welt 8/2, 16, 1997
    Blass, G.; Graf, H.W., Neue Mineralien und Bestimmungen (17), Mineralien-Welt 8/2, 16, 1997
              • Wingertsberg Mt.
    		Blass, G.; Graf, H.W., Neue Mineralien und Bestimmungen (17), Mineralien-Welt 8/2, 16, 1997
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
          • Vitim Plateau
            • Biraya and Bya Rivers confluence area (Chara Basin)
    		C. Lemanski, Jr. (re-entry of lost Mindat data).
    • Urals Region
      • Chelyabinsk Oblast'
        • Ilmen Mts
          • Ilmen Natural Reserve
    		P.M. Kartashov data
    Ukraine
     
    • Zaporozh'e Oblast'
      • Azov Sea Region
        • Novopoltavskii Massif
    		Trudy Min.Muz. Fersmana (1976) 25, 166-172
    USA
     
    • Arkansas
      • Pulaski Co.
        • Little Rock
    Mineral and/or Locality
    Google
     
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