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Lukechangite-(Ce)

Formula:
Na
 
3
Ce
 
2
[F|(CO
 
3
)
 
4
]
System:HexagonalLustre:Vitreous
Hardness:4½
Name:For Prof. Luke L. Y. Chang (1934-) University of Maryland, for his contributions to the study of carbonate group minerals.
This page provides mineralogical data about Lukechangite-(Ce).

Classification of Lukechangite-(Ce)

IMA status:Approved
Strunz 8th edition ID:5/C.07-175
Nickel-Strunz 10th (pending) edition ID:5.BD.05

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
D : With rare earth elements (REE)
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Type Occurrence of Lukechangite-(Ce)

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Physical Properties of Lukechangite-(Ce)

Lustre:Vitreous
Hardness (Mohs):4½

Crystallography of Lukechangite-(Ce)

Crystal System:Hexagonal

Optical Data of Lukechangite-(Ce)

Type:Uniaxial (-)
RI values: nω = 1.728 nε = 1.542
Maximum Birefringence:δ = 0.186

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

Chemical Properties of Lukechangite-(Ce)

Formula:
Na
 
3
Ce
 
2
[F|(CO
 
3
)
 
4
]
Essential elements:C, Ce, F, Na, O
All elements listed in formula:C, Ce, F, Na, O

Relationship of Lukechangite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

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

Other Names for Lukechangite-(Ce)

Synonyms:
IMA1996-033
Other Languages:
German:Lukechangit-(Ce)
Russian:Люкечейнжит-(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 Lukechangite-(Ce)

Reference List:American Mineralogist (1997): 82: 1255-1260.

Mineralogical Record: 29: 474.

Internet Links for Lukechangite-(Ce)

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

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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.
    (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.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		Grice, J.D. and Chao, G.Y. (1997), Lukechangite-(Ce), a new rare-earth-fluorocarbonate mineral from Mont Saint-Hilaire, Quebec. American Mineralogist: 82: 1255-1260.
    Mineral and/or Locality
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