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Nioboaeschynite-(Nd)

Formula:
(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)
 
2
(O,OH)
 
6
System:OrthorhombicColour:black
Hardness:5½
This page provides mineralogical data about Nioboaeschynite-(Nd).

Classification of Nioboaeschynite-(Nd)

IMA status:Rejected
Explanation of status:not approved by CNMMN
Strunz 8th edition ID:4/D.21-60
Nickel-Strunz 10th (pending) edition ID:4.DF.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
F : With large (+- medium-sized) cations; dimers and trimers of edgesharing octahedra
Hey's CIM Ref.:18.2.17

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U
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Physical Properties of Nioboaeschynite-(Nd)

Colour:black
Streak:reddish brown
Hardness (Mohs):5½
Cleavage:None Observed

Crystallography of Nioboaeschynite-(Nd)

Crystal System:Orthorhombic

Chemical Properties of Nioboaeschynite-(Nd)

Formula:
(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)
 
2
(O,OH)
 
6
Essential elements:Nb, Nd, O
All elements listed in formula:Ca, Ce, Fe, H, Nb, Nd, O, Ta, Th, Ti

Relationship of Nioboaeschynite-(Nd) to other Species

Related Minerals - Nickel-Strunz Grouping):
4.DF.05Aeschynite-(Ce)
(Ce,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Aeschynite-(Nd)
(Nd,Ce,Ca)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Aeschynite-(Y)
(Y,Ca,Fe,Th)(Ti,Nb)
 
2
(O,OH)
 
6
4.DF.05Nioboaeschynite-(Ce)
(Ce,Ca,Th)(Nb,Ti)
 
2
(O,OH)
 
6
4.DF.05Nioboaeschynite-(Y)
(Y,Ca,Ce,Nd,Th)(Nb,Ti,Ta,Fe)
 
2
(O,OH)
 
6
4.DF.05Rynersonite
Ca(Ta,Nb)
 
2
O
 
6
4.DF.05Tantalaeschynite-(Y)
(Y,Ce,Ca)(Ta,Ti,Nb)
 
2
O
 
6
4.DF.05Vigezzite
(Ca,Ce)(Nb,Ti)
 
2
O
 
6
4.DF.10Changbaiite
PbNb
 
2
O
 
6
4.DF.15Murataite-(Y)
(Na,Y)
 
4
(Zn,Fe)
 
3
(Ti,Nb)
 
6
O
 
18
(F,OH)
 
4
Related Minerals - Hey's Index Grouping:
18.2.1Fergusonite-(Y)
YNbO
 
4
18.2.2β-Fergusonite-(Y)
YNbO
 
4
18.2.3Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
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
18.2.18Tantalaeschynite-(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 Information

Health Warning:Radioactive

References for Nioboaeschynite-(Nd)

Reference List:Mineralogy of Bayan Obo by Zhang & Tao (1996)

Internet Links for Nioboaeschynite-(Nd)

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    Localities for Nioboaeschynite-(Nd)

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    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.
    China
     
    • Inner Mongolia Autonomous Region
      • Baotou League
        • Darhan Muminggan United Banner
          • Bayan Obo
    		Yang Zhuming, Smith, M., Henderson, P., Le Bas, M.J., Tao Kejie, and Zhang Peishan (2001): European Journal of Mineralogy 13(6), 1207-1214.
    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).
    South Korea
     
    • Chungcheongbukdo (Chungchong-pukto)
      • Chungju (Chung Won Kum; Chung-ju)
        • Joongwon-gun
          • Mt. Eorae
    		P.M. Kartashov data
    Mineral and/or Locality
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