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Fluorcalciobritholite

A valid IMA mineral species
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03347070014947738221220.jpg
Fluorcalciobritholite, etc.

Tuliok River head, East slope, Kukisvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
01000020014951862344211.jpg
Fluorcalciobritholite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
02443650014951862347078.jpg
Fluorcalciobritholite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
07423100014989852714119.jpg
Fluorcalciobritholite, etc.

Tuliok River head, East slope, Kukisvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
01000020014951862344211.jpg
Fluorcalciobritholite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
03802130014946331977298.jpg
Fluorcalciobritholite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
03347070014947738221220.jpg
Fluorcalciobritholite, etc.

Tuliok River head, East slope, Kukisvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
01000020014951862344211.jpg
Fluorcalciobritholite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
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About FluorcalciobritholiteHide

Formula:
(Ca,REE)5(SiO4,PO4)3F
Colour:
Pinkish to brown
Hardness:
5½
Specific Gravity:
4.2
Crystal System:
Hexagonal
Name:
The name follows convention and denotes its dominant fluorine and calcium content and its relationship to other britholite group minerals.
A mineral in the Britholite Group of the Apatite Supergroup. Defined as a distinct mineral by Pekov et al. (2007).


Unique IdentifiersHide

Mindat ID:
29138
Long-form identifier:
mindat:1:1:29138:9
GUID
(UUID V4):
9ef95a03-3202-48c6-8d44-2e4fdbada2b6

IMA Classification of FluorcalciobritholiteHide

Classification of FluorcalciobritholiteHide

Strunz-mindat (2024):
9.AH.25

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
Dana 8th ed.:
52.4.12.7

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
FcbriIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of FluorcalciobritholiteHide

Transparency:
Transparent, Translucent
Colour:
Pinkish to brown
Streak:
white
Hardness:
5½ on Mohs scale
Density:
4.2 g/cm3 (Measured)    

Optical Data of FluorcalciobritholiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.735(5) nε = 1.730(5)
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemistry of FluorcalciobritholiteHide

Mindat Formula:
(Ca,REE)5(SiO4,PO4)3F
Elements listed:
Ca, F, O, P, Si - search for minerals with similar chemistry

Crystallography of FluorcalciobritholiteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 9.58(7) Å, c = 6.985(4) Å
Ratio:
a:c = 1 : 0.729
Unit Cell V:
555.2 ų
Z:
2
Morphology:
long-prismatic hexagonal crystals up to 0.5 x 10 mm

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.51 Å(45)
3.15 Å(70)
2.85 Å(100)
2.78 Å(60)
1.965 Å(25)
1.931 Å(20)
1.236 Å(25)
1.122 Å(30)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Geological Setting:
In veinlets in an alkaline complex

Type Occurrence of FluorcalciobritholiteHide

Type Locality:
ⓘ Tuliok River head, East slope, Kukisvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
General Appearance of Type Material:
Grains and minute elongated crystals
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, no. 3420/1.
Associated Minerals at Type Locality:
SodaliteOrthoclaseNephelineFayalite
Reference:
Pekov, Igor V., Pasero, Marco, Yaskovskaya, Asiya N., Chukanov, Nikita V., Pushcharovsky, Dmitry Yu., Merlino, Stefano, Zubkova, Natalia V., Kononkova, Natalia N., Men'shikov, Yury P., Zadov, Aleksandr E. (2007) Fluorcalciobritholite, (Ca,REE)5[(Si,P)O4]3F, a new mineral: description and crystal chemistry. European Journal of Mineralogy: 19: 95-103.
Download:
http://rruff.info/rruff_1.0/uploads/EJM19_95.pdf

Synonyms of FluorcalciobritholiteHide

Other Language Names for FluorcalciobritholiteHide

Simplified Chinese:氟硅磷灰石

Relationship of Fluorcalciobritholite to other SpeciesHide

Member of:
Britholite Group > Apatite Supergroup
Other Members of this group:
Britholite-(Ce)(Ce,Ca)5(SiO4)3OHHex. 6/m : P63/m
Britholite-(La)Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
Britholite-(Y)(Y,Ca)5(SiO4)3OHHex. 6/m : P63/m
Calciobritholite(Ca,Y)5(SiO4,PO4)3(OH)
Fluorbritholite-(Ce)(Ce,Ca)5(SiO4)3FHex. 6/m : P63/m
Fluorbritholite-(Nd)Ca2Nd3(SiO4)3FHex. 6/m : P63/m
Fluorbritholite-(Y)(Y,Ca)5(SiO4)3FHex. 6/m : P63/m
Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Fluorcalciobritholite associated with AlbiteNa(AlSi3O8)
1 photo of Fluorcalciobritholite associated with NephelineNa3K(Al4Si4O16)
1 photo of Fluorcalciobritholite associated with MagnetiteFe2+Fe3+2O4

Related Minerals - Strunz-mindat GroupingHide

9.AH.Fluorbritholite-(Nd)Ca2Nd3(SiO4)3FHex. 6/m : P63/m
9.AH.05Iimoriite-(Y)Y2[SiO4][CO3]Tric. 1 : P1
9.AH.10Tundrite-(Ce)Na2Ce2Ti(SiO4)(CO3)2O2Tric. 1 : P1
9.AH.10Tundrite-(Nd)Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2
9.AH.15SpurriteCa5(SiO4)2(CO3)Mon. 2/m : P21/b
9.AH.15GaluskiniteCa7(SiO4)3(CO3) Mon. 2/m : P21/b
9.AH.20TernesiteCa5(SiO4)2(SO4)Orth. mmm (2/m 2/m 2/m) : Pnma
9.AH.20SilicocarnotiteCa5[(SiO4)(PO4)](PO4)Orth. mmm (2/m 2/m 2/m) : Pnma
9.AH.25Britholite-(Ce)(Ce,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25Britholite-(Y)(Y,Ca)5(SiO4)3OHHex. 6/m : P63/m
9.AH.25ChlorellestaditeCa5(SiO4)1.5(SO4)1.5ClHex. 6/m : P63/m
9.AH.25Fluorbritholite-(Ce)(Ce,Ca)5(SiO4)3FHex. 6/m : P63/m
9.AH.25FluorellestaditeCa5(SiO4)1.5(SO4)1.5FHex. 6/m : P63/m
9.AH.25HydroxylellestaditeCa5(SiO4)1.5(SO4)1.5(OH)Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
9.AH.25MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)Hex. 6/m : P63/m
9.AH.25Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
9.AH.25Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
9.AH.25Fluorbritholite-(Y)(Y,Ca)5(SiO4)3FHex. 6/m : P63/m
9.AH.25Britholite-(La)Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25Calciobritholite(Ca,Y)5(SiO4,PO4)3(OH)
9.AH.35NabimusaiteKCa12(SiO4)4(SO4)2O2FTrig. 3m (3 2/m) : R3m
9.AH.35DargaiteBaCa12(SiO4)4(SO4)2O3Trig. 3m : R3m
9.AH.40ZadoviteBaCa6[(SiO4)(PO4)](PO4)2FTrig. 3m : R3m
9.AH.40GazeeviteBaCa6(SiO4)2(SO4)2OTrig. 3m (3 2/m) : R3m
9.AH.40StracheriteBaCa6(SiO4)2[(PO4)(CO3)]2FTrig. 3m (3 2/m) : R3m
9.AH.45FlamiteCa8-x(Na,K)x(SiO4)4-x(PO4)xOrth. mm2
9.AH.50ByzantieviteBa5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5Trig. 3 : R3
9.AH.55Greenwoodite(Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22Trig. 3m (3 2/m) : P3m1
9.AH.60Kihlmanite-(Ce)Ce2TiO2(SiO4)(HCO3)2(H2O)Tric. 1 : P1
9.AH.65TsangpoiteCa5(PO4)2(SiO4)Hex.
9.AH.70Enalite(Th,REE,Al) [(PO4),(SiO4),(OH)]Tet.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for FluorcalciobritholiteHide

References for FluorcalciobritholiteHide

Localities for FluorcalciobritholiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
China
 
  • Yunnan
    • Honghe
      • Gejiu City
Wang +1 other reference
Germany
 
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Mendig
        • Mendig
Schäfer et al. (2018)
Kyrgyzstan
 
  • Batken Region
    • Batken District
Pautov et al. (2013)
Norway
 
  • Nordland
    • Hamarøy
Selbekk et al. (2010)
Russia (TL)
 
  • Murmansk Oblast
    • Khibiny Massif
      • Kukisvumchorr Mt
        • East slope
Pekov et al. (2007)
    • Lovozersky District
      • Keivy Mountains
        • Western Keivy Massif
          • Sakharyok alkaline massif
Kasatkin (2019)
D. R. Zozulya et al. (2015)
Slovakia
 
  • Trenčín Region
    • Považská Bystrica District
      • Stupné
Uher et al. (2015)
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