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Bastnäsite-(Nd)

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Formula:
Nd(CO
 
3
)F
System:HexagonalColour:Pale purplish pink to ...
Hardness:4 - 4½
Member of:Bastnäsite Group
Name:Name first published without approval for a mineral from the Clara Mine, Black Forest, Germany, tentatively identified by Walenta (1992) as a Nd-dominant bastnäsite (see also Kolitsch et al. 1997, Kolitsch, 1997).


The F-analogue of Hydroxylbastnäsite-(Nd).

Classification of Bastnäsite-(Nd)

IMA status:Approved 2011
Nickel-Strunz 10th (pending) edition ID:5.BD.20a

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
Dana 8th edition ID:16a.1.1.4

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)(XO3)Zq
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Type Occurrence of Bastnäsite-(Nd)

Type Locality:Stetind pegmatite, Tysfjord, Nordland, Norway
General Appearance of Type Material:Occurs in the outer rim zone in crystals of bastnäsite-(Ce), found in cavities in yttrian fluorite.
Place of Conservation of Type Material:National Science Museum, Tokyo, registration number NSM-F15494.
Geological Setting of type material:Granite pegmatite.
Associated Minerals at type locality:
Vyuntspakhkite-(Y)StetinditeKozoite-(Nd)FluoriteCalcioancylite-(Nd)
Bastnäsite-(Ce)

Physical Properties of Bastnäsite-(Nd)

Lustre:Vitreous, Greasy, Pearly
Diaphaneity (Transparency):Translucent
Colour:Pale purplish pink to colourless
Streak:White
Hardness (Mohs):4 - 4½
Tenacity:Brittle
Cleavage:Poor/Indistinct
on {1010}
Fracture:Irregular/Uneven
Density (calculated):5.23 g/cm3

Crystallography of Bastnäsite-(Nd)

Crystal System:Hexagonal
Class (H-M):6 m2 - Ditrigonal Dipyramidal
Space Group:P62c
Cell Parameters:a = 7.0792(13) Å, c = 9.721(2) Å
Ratio:a:c = 1 : 1.373
Unit Cell Volume:V 421.92 ų
Z:6
X-Ray Powder Diffraction:
d-spacingIntensity
4.86 (71)
3.54 (70)
2.86 (100)
2.43 (22)
2.04 (31)
2.00 (48)
1.883 (29)
1.662 (16)

Chemical Properties of Bastnäsite-(Nd)

Formula:
Nd(CO
 
3
)F
Simplified for copy/paste:Nd(CO3)F
Essential elements:C, F, Nd, O
All elements listed in formula:C, F, Nd, O
Analytical Data:Average of 6 electron-microprobe analyses; CO2 was estimated by stoichiometry. Sample from the type locality.
Y2O3 (0.19)
La2O3 (18.64)
Ce2O3 (18.64)
Pr2O3 (6.41)
Nd2O3 (26.86)
Sm2O3 (2.95)
Gd2O3 (1.30)
Dy2O3 (0.07)
F (8.98)
CO2 (19.92)
O=F (-3.78)
Total (100.18)
Empirical Formula:
Nd
 
0.353
La
 
0.253
Ce
 
0.251
Pr
 
0.086
Sm
 
0.037
Gd
 
0.016
Y
 
0.004
Dy
 
0.001
CO
 
2.978
F
 
1.044
Common Impurities:La,Ce,Pr,Sm,Gd

Relationship of Bastnäsite-(Nd) to other Species

Member of:Bastnäsite Group
Other Members of Group:

- +
Bastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
Bastnäsite-(La)
(La,Ce)(CO
 
3
)F
Bastnäsite-(Y)
(Y,Ce)(CO
 
3
)F
Hydroxylbastnäsite-(Ce)
(Ce,La)(CO
 
3
)(OH,F)
Hydroxylbastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)(OH,F)
Thorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
· 3H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
5.BD.05Cordylite-(Ce)
NaBaCe
 
2
(CO
 
3
)
 
4
F
5.BD.05Lukechangite-(Ce)
Na
 
3
Ce
 
2
(CO
 
3
)
 
4
F
5.BD.10Zhonghuacerite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
5.BD.10Kukharenkoite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
5.BD.10Kukharenkoite-(La)
Ba
 
2
(La,Ce,Th)(CO
 
3
)
 
3
F
5.BD.15Cebaite-(Ce)
Ba
 
3
Ce
 
2
(CO
 
3
)
 
5
F
 
2
5.BD.15Cebaite-(Nd)
Ba
 
3
(Nd,Ce)
 
2
(CO
 
3
)
 
5
F
 
2
5.BD.18Arisite-(Ce)
NaCe
 
2
(CO
 
3
)
 
3-x
F
 
2x+1
5.BD.18Arisite-(La)
NaLa
 
2
(CO
 
3
)
 
3-x
F
 
2x+1
5.BD.20aBastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
5.BD.20aBastnäsite-(La)
(La,Ce)(CO
 
3
)F
5.BD.20aBastnäsite-(Y)
(Y,Ce)(CO
 
3
)F
5.BD.20aHydroxylbastnäsite-(Ce)
(Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(La)
(La,Nd,Ce)(CO
 
3
)(OH,F)
5.BD.20bParisite-(Ce)
Ca(Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
5.BD.20bParisite-(Nd)
Ca(Nd,Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
5.BD.20dRöntgenite-(Ce)
Ca
 
2
(Ce,La)
 
3
(CO
 
3
)
 
5
F
 
3
5.BD.20cSynchysite-(Ce)
Ca(Ce,La)(CO
 
3
)
 
2
F
5.BD.20cSynchysite-(Nd)
Ca(Nd,Y,Gd)(CO
 
3
)
 
2
F
5.BD.20cSynchysite-(Y)
Ca(Y,Ce)(CO
 
3
)
 
2
F
5.BD.20aThorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
· 3H
 
2
O
5.BD.25Horváthite-(Y)
NaY(CO
 
3
)F
 
2
5.BD.25Qaqarssukite-(Ce)
Ba(Ce,REE)(CO
 
3
)
 
2
F
5.BD.35Huanghoite-(Ce)
BaCe(CO
 
3
)
 
2
F

Other Names for Bastnäsite-(Nd)

Synonyms:
IMA2011-062Unnamed (Nd-analogue of Bastnäsite-(Ce) and Bastnäsite-(La))
Other Languages:

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 Bastnäsite-(Nd)

Reference List:

- +
WALENTA, K. (1992): Die Mineralien des Schwarzwaldes. Christian Weise Verlag, München. [tentative identification of a Nd-dominant bastnäsite]

KOLITSCH, U., GRAF, H. W. & BLAß, G. (1997): Untersuchungen über die Seltenerden-Carbonate Bastnäsit und Synchisit von der Grube Clara im Schwarzwald: Nachweis von Bastnäsit-(Ce), Bastnäsit-(Nd), Bastnäsit-(La) und Synchisit-(Ce). Aufschluss 48, 367-379.

Kolitsch, U. (1997): Ianthinit und weitere Neufunde aus der Grube Clara im mittleren Schwarzwald. Erzgräber 11 (2), 76-88.

Miyawaki, R., Yokoyama, K. and Husdal, T. (2011): Bastnäsite-(Nd), IMA 2011-062. CNMNC Newsletter No. 11, December 2011, page 2890; Mineralogical Magazine, 75, 2887-2893.

Miyawaki, R., Yokoyama, K. and Husdal, T.A. (2013): Bastnäsite-(Nd), a new Nd-dominant member of the bastnäsite group from the Stetind pegmatite, Tysfjord, Nordland, Norway. European Journal of Mineralogy, 25, 187-191.

Internet Links for Bastnäsite-(Nd)

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  • Localities for Bastnäsite-(Nd)

    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.
    (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.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Kolitsch, U., Graf, H. W. & Blaß, G. (1997): Untersuchungen über die Seltenerden-Carbonate Bastnäsit und Synchisit von der Grube Clara im Schwarzwald: Nachweis von Bastnäsit-(Ce), Bastnäsit-(Nd), Bastnäsit-(La) und Synchisit-(Ce). Aufschluss 48, 367-379; Kolitsch, U. (1997): Ianthinit und weitere Neufunde aus der Grube Clara im mittleren Schwarzwald. Erzgräber 11 (2), 76-88; Kolitsch, U., Gröbner, J. Blass, G. & Graf, H.-W. (2007): Neufunde aus der Grube Clara im mittleren Schwarzwald (III): Cerianit-(Ce), Dravit, Florencit-(La), Gilmarit, Olenit und Scotlandit. Lapis 32 (6), 19-23; 70 (in German).
    Norway
     
    • Nordland
      • Tysfjord
    Miyawaki, R., Yokoyama, K. and Husdal, T. (2011): Bastnäsite-(Nd), IMA 2011-062. CNMNC Newsletter No. 11, December 2011, page 2890; Mineralogical Magazine, 75, 2887-2893
    Slovakia
     
    • Banská Bystrica Region
      • Rimavská Sobota Co.
        • Tisovec
    Ondrejka M., Uher P., Pršek J., Ozdín D., 2007: Arsenian monazite-(Ce) and xenotime-(Y), REE arsenates and carbonates from the Tisovec-Rejkovo rhyolite, Western Carpathians, Slovakia: Composition and substitutions in the (REE,Y)XO4 system (X = P, As, Si, Nb, S). Lithos, 95, 116-129.
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