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Bastnäsite-(Y)

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Verkhnee Espe Massif, Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts), Tarbagatai Range, Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan
© Pavel M. Kartashov

Show Bastnäsite-(Y) Photos (3)



Formula:
(Y,Ce)(CO
 
3
)F
System:HexagonalColour:Translucent brick-red
Hardness:4 - 4½
Name:For the locality at the Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden, plus the "-(Y)" suffix due to the dominance of yttrium in the composition.


Yttrium analogue of Bastnäsite-(Ce) and Bastnäsite-(La).

Classification of Bastnäsite-(Y)

IMA status:Approved
Strunz 8th edition ID:5/C.07-10
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.1.1.3

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)(XO3)Zq
Hey's CIM Ref.:12.1.10

12 : Carbonates with other anions
1 : Carbonates with halides
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Type Occurrence of Bastnäsite-(Y)

Type Locality:Verkhnee Espe Massif, Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts), Tarbagatai Range, Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan

Physical Properties of Bastnäsite-(Y)

Colour:Translucent brick-red
Hardness (Mohs):4 - 4½

Crystallography of Bastnäsite-(Y)

Crystal System:Hexagonal

Optical Data of Bastnäsite-(Y)

Type:Uniaxial (+)
RI values: nω = 1.717 nε = 1.818
Maximum Birefringence:δ = 0.101

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

Chemical Properties of Bastnäsite-(Y)

Formula:
(Y,Ce)(CO
 
3
)F
Essential elements:C, F, O, Y
All elements listed in formula:C, Ce, F, O, Y

Relationship of Bastnäsite-(Y) to other Species

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.20aHydroxylbastnäsite-(Ce)
(Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)(OH,F)
5.BD.20aHydroxylbastnäsite-(La)
(La,Ce)(CO
 
3
)(F,OH)
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.20aBastnäsite-(Nd)
(Nd,Ce,La)(CO
 
3
)F
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
Related Minerals - Hey's Index Grouping:

- +
12.1.1Northupite
Na
 
3
Mg(CO
 
3
)
 
2
Cl
12.1.2Barentsite
Na
 
7
AlH
 
2
(CO
 
3
)
 
4
F
 
4
12.1.3Rouvilleite
Na
 
3
(Ca,Mn,Fe)
 
2
(CO
 
3
)
 
3
F
12.1.4Chlormagaluminite
(Mg,Fe
2+
 
)
 
4
Al
 
2
(Cl
 
2
,CO
 
3
)(OH)
 
12
 · 2H
 
2
O
12.1.5Defernite
Ca
 
6
(CO
 
3
)
 
2-x
(SiO
 
4
)
 
x
(OH)
 
7
(Cl,OH)
 
1-2x
 (x=0.5)
12.1.6Brenkite
Ca
 
2
(CO
 
3
)F
 
2
12.1.7Stenonite
(Sr,Ba,Na)
 
2
Al(CO
 
3
)F
 
5
12.1.8Bastnäsite-(Ce)
(Ce,La)(CO
 
3
)F
12.1.9Bastnäsite-(La)
(La,Ce)(CO
 
3
)F
12.1.11Parisite-(Ce)
Ca(Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.12Parisite-(Nd)
Ca(Nd,Ce,La)
 
2
(CO
 
3
)
 
3
F
 
2
12.1.13Synchysite-(Ce)
Ca(Ce,La)(CO
 
3
)
 
2
F
12.1.14Synchysite-(Y)
Ca(Y,Ce)(CO
 
3
)
 
2
F
12.1.15Synchysite-(Nd)
Ca(Nd,Y,Gd)(CO
 
3
)
 
2
F
12.1.16Röntgenite-(Ce)
Ca
 
2
(Ce,La)
 
3
(CO
 
3
)
 
5
F
 
3
12.1.17Cordylite-(Ce)
NaBaCe
 
2
(CO
 
3
)
 
4
F
12.1.19Huanghoite-(Ce)
BaCe(CO
 
3
)
 
2
F
12.1.20Zhonghuacerite-(Ce)
Ba
 
2
Ce(CO
 
3
)
 
3
F
12.1.21Cebaite-(Ce)
Ba
 
3
Ce
 
2
(CO
 
3
)
 
5
F
 
2
12.1.22Thorbastnäsite
Th(Ca,Ce)(CO
 
3
)
 
2
F
 
2
 · 3H
 
2
O
12.1.23Phosgenite
Pb
 
2
CO
 
3
Cl
 
2
12.1.24Barstowite
Pb
 
4
Cl
 
6
(CO
 
3
) · H
 
2
O
12.1.25Albrechtschraufite
Ca
 
4
Mg(UO
 
2
)
 
2
(CO
 
3
)
 
6
F
 
2
 · 17 H
 
2
O
12.1.26Kettnerite
CaBiCO
 
3
OF

Other Names for Bastnäsite-(Y)

Synonyms:
Bastnaesite-(Y)
Other Languages:
German:Bastnäsit-(Y)
Russian:Бастнезит-(Y)

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-(Y)

Reference List:

- +
American Mineralogist: 57: 594.

American Mineralogist: 78: 415-418 (Bastnäsite-(Ce) structure).

Internet Links for Bastnäsite-(Y)

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Bastnäsite-(Y) details from Handbook of Mineralogy (PDF)
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    • Localities for Bastnäsite-(Y)

    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.
    Hide Locality List
    (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 (Baotou Prefecture)
        • Bayan Obo Mining District
          • Bayan Obo
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Germany
     
    • Lower Saxony
      • Harz Mts
        • Clausthal-Zellerfeld
          • Bad Grund
            • Wiemannsbucht
    		Haack, U., Schnorrer-Koehler, G. & Lueders, V. (1987): Seltenerd-Minerale aus hydrothermalen Gängen des Harzes. Chemie der Erde 47, 41-45 (in German).
    Kazakhstan
    No reference listed
    • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
      • Tarbagatai Range
        • Akzhaylyautas Mts (Akzhailyautas Mts; Akjaylautas Mts; Akzhalautas Mts)
    		American Mineralogist (1972) 57, 594 ; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    South Korea
     
    • Chungcheongbukdo (Chungchong-pukto)
      • Chungju (Chung Won Kum; Chung-ju)
        • Joongwon-gun
          • Mt. Eorae
    		P.M. Kartashov data
    Tajikistan
     
    • Region of Republican Subordination
      • Tien Shan Mts
        • Alai (Alayskiy) Range
    		Pavel M. Kartashov analytical data (2011)
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