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Fluorbritholite-(Ce)

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Norra Kärr, Gränna, Jönköping, Småland, Sweden
© Sergey Vasiliev

Show Fluorbritholite-(Ce) Photos (2)
Formula:
Ca
 
2
(Ce,Ca)
 
3
[(F,OH)|(SiO
 
4
,PO
 
4
)
 
3
]
System:HexagonalColour:Pale yellow, tan, ...
Lustre:AdamantineHardness:5


Britholite Group

The fluorine-dominant analogue of Britholite-(Ce)

Classification of Fluorbritholite-(Ce)

IMA status:Approved 1991
Strunz 8th edition ID:8/B.27-62
Nickel-Strunz 10th (pending) edition ID:9.AH.25

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
Dana 8th edition ID:52.4.9.8

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
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Type Occurrence of Fluorbritholite-(Ce)

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
Geological Setting of type material:in vugs in nepheline syenite, marble xenoliths, sodalite syenite xenoliths and pegmatite dykes
Associated Minerals at type locality:
ZirconUssingiteSteenstrupine-(Ce)SodaliteSérandite
PyrophanitePhillipsitePectoliteNatroliteMonazite
MicroclineLueshiteLovozeriteGötzeniteFluorite
EudialyteChabaziteCarbonate-rich Apatite-(CaF)CalciteBiotite
AncyliteAnalcimeAlbiteAegirine

Physical Properties of Fluorbritholite-(Ce)

Lustre:Adamantine
Colour:Pale yellow, tan, reddish-brown
Hardness (Mohs):5

Crystallography of Fluorbritholite-(Ce)

Crystal System:Hexagonal

Optical Data of Fluorbritholite-(Ce)

Type:Uniaxial (-)
RI values: nω = 1.792 nε = 1.786
Maximum Birefringence:δ = 0.006

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

Chemical Properties of Fluorbritholite-(Ce)

Formula:
Ca
 
2
(Ce,Ca)
 
3
[(F,OH)|(SiO
 
4
,PO
 
4
)
 
3
]
Essential elements:Ce, F, O, Si
All elements listed in formula:Ca, Ce, F, H, O, P, Si

Relationship of Fluorbritholite-(Ce) to other Species

Member of Group:
Britholite Group:
Related Minerals - Nickel-Strunz Grouping):

- +
9.AH.05Iimoriite-(Y)
Y
 
2
[CO
 
3
|SiO
 
4
]
9.AH.10Tundrite-(Ce)
Na
 
2
Ce
 
2
TiO
 
2
(SiO
 
4
)(CO
 
3
)
 
2
9.AH.10Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH)·2H
 
2
O
9.AH.15Paraspurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
9.AH.15Spurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
9.AH.20Ternesite
Ca
 
5
[SO
 
4
|(SiO
 
4
)
 
2
]
9.AH.25Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
9.AH.25Britholite-(Y)
Ca
 
2
(Y,Ca)
 
3
[(OH,F)|(SiO
 
4
,PO
 
4
)
 
3
]
9.AH.25Ellestadite-(Cl)
Ca
 
10
[Cl
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Ellestadite-(F)
Ca
 
10
[(F,Cl,OH)
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Ellestadite-(OH)
Ca
 
10
[(OH,Cl,F)
 
2
|(SO
 
4
)
 
3
|(SiO
 
4
)
 
3
]
9.AH.25Mattheddleite
Pb
 
5
(Si
 
1.5
S
 
1.5
)O
 
12
(Cl,OH)
9.AH.25Tritomite-(Ce)
(Ce,La,Y,Th)
 
5
(Si,B)
 
3
(O,OH,F)
 
13
9.AH.25Tritomite-(Y)
(Y,Ca,La,Fe)
 
5
(Si,B,Al)
 
3
(O,OH,F)
 
13
9.AH.25Fluorcalciobritholite
(Ca,Ce)
 
5
 (SiO
 
4
,PO
 
4
)
 
3
F
9.AH.25IMA2009-005
Ca
 
2
(Y,Ca)
 
3
[(F,OH)|(SiO
 
4
,PO
 
4
)
 
3
]

Other Names for Fluorbritholite-(Ce)

Synonyms:
IMA1991-027
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 Fluorbritholite-(Ce)

Reference List:New Minerals (1997), New Minerals 1990-1994.

Acta Petrologica et Mineralogica: 15(1): 40-45.

Internet Links for Fluorbritholite-(Ce)

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    Localities for Fluorbritholite-(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.
    (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
    		[MinRec 27:463], JWUT 9:9-14(1994)
    Sweden
     
    • Östergötland
      • Ödeshög
        • Norra Kärr
    		Swedish Nat.Musuem
    • Småland
      • Jönköping
        • Gränna
    		Strand, U.(1999): Meddelande om Nytt mineral för Sverige. Jinshajiangit fån Norra Kärr, Gränna, samt något om fluorbritolit-(Ce). STEIN 26 (2), 38-39
    • Västmanland
      • Norberg
    		Holtstam D., Kolitsch U. and Andersson U. (2005) Västmanlandite-(Ce) - a new lanthanide- and F-bearing sorosilicate mineral from Västmanland, Sweden: description, crystal structure, and relation to gatelite-(Ce). European Journal of Mineralogy 17, 129-142.
    Vietnam
     
    • Lai Chau Province
      • Phong Tho District
        • Mt Fansipan
    		Feldman l.G., Sarkisyan S.Sh., Boriskin V.P., Purusova S.P., Nguen Van Hoai, Chin Suan Ben (1987) Crystalline beckelite from Nam Se deposit (Northern Vietnam), - Mineralogicheskiy Zhurnal, v.9, N1, pp. 78-86 (in Rus.)
    Mineral and/or Locality
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