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About FluorcalciopyrochloreHide

(Ca,Na)2(Nb, Ti)2O6F
Brownish-yellow to reddish-orange
Adamantine, Greasy
Specific Gravity:
4.34 (Calculated)
Crystal System:
For the chemical composition and relation to pyrochlore (now a generic name).
This page provides mineralogical data about Fluorcalciopyrochlore.

Classification of FluorcalciopyrochloreHide

Approval Year:
First Published:

Physical Properties of FluorcalciopyrochloreHide

Adamantine, Greasy
Transparent, Translucent
On fractured surfaces
Brownish-yellow to reddish-orange
Light yellow
None Observed
None observed
4.34 g/cm3 (Calculated)

Chemical Properties of FluorcalciopyrochloreHide

(Ca,Na)2(Nb, Ti)2O6F
IMA Formula:

Crystallography of FluorcalciopyrochloreHide

Crystal System:
Cell Parameters:
a = 10.4164(9) Å
Unit Cell V:
1,130.19 ų (Calculated from Unit Cell)
As octahedra {111}, dodecahedra {110}, and cubes {100}, or combinations thereof, and generally range in size from 0.01 to 0.3 mm
Fd3¯ m

X-Ray Powder DiffractionHide

Powder Diffraction Data:

Type Occurrence of FluorcalciopyrochloreHide

General Appearance of Type Material:
As octahedra {111}, dodecahedra {110}, and cubes {100}, or combinations thereof, and generally range in size from 0.01 to 0.3 mm
Place of Conservation of Type Material:
In the collections of the Laboratory of Crystal Structure, Scientific Research Institute, China University of Geosciences, Beijing, 100083, China, catalogue number XI-81
Geological Setting of Type Material:
A dolomite-type niobium rare-earth ore deposit.
Associated Minerals at Type Locality:

Synonyms of FluorcalciopyrochloreHide

Relationship of Fluorcalciopyrochlore to other SpeciesHide

Other Members of this group:
Cesiokenopyrochlore□Nb2(O,OH)6(Cs,◻) (◻ ∼ 0.20)Iso. m3m (4/m 3 2/m) : Fd3m
FluorhydropyrochloreA possible new species (See discussion in Atencio et al.
Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m (4/m 3 2/m)
Hydrokenopyrochlore(□,x)2Nb2O6(H2O,Cs)Iso. m3m (4/m 3 2/m) : Fd3m
Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxycalciopyrochlore(Ca,Na,U,□)2(Nb,Ti)2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxykenopyrochlore(□,Ce,Ba)2(Nb,Ti)2O6(OH,F)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxymanganopyrochlore(Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) Iso. m3 (2/m 3)
Hydroxynatropyrochlore(Na,Сa,Ce)2Nb2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
Hydroxyplumbopyrochlore (Pb1.50.5)Nb2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
OxycalciopyrochloreCa2Nb2O6OIso. m3m (4/m 3 2/m) : Fd3m
Unnamed (Sb-analogue of Hydroxymanganopyrochlor)(Mn,Ca,Y)2(Sb,Ti)2O6(OH)

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Fluorcalciopyrochlore associated with TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
1 photo of Fluorcalciopyrochlore associated with FluorapatiteCa5(PO4)3F

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.

References for FluorcalciopyrochloreHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Annalen Physik Chemie, (Poggendorff) (1826) 7, 417-427.
Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., and Kartashov, P.M. (2010) The Pyrochlore Supergroup of Minerals: Nomenclature. The Canadian Mineralogist: 48: 673-698.
Christy, A.G. and Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine: 77: 13-20.
Li, G., Yang, G., Lu, F., Xiong, M., Ge, X., and Pan, B. (2013) Fluorcalciopyrochlore, IMA 2013-055. CNMNC Newsletter No. 17, October 2013, page 3003; Mineralogical Magazine: 77: 2997-3005.
Li, G., Yang, G., Lu, F., Xiong, M., Ge, X., Pan, B., and de Fourestier, J. (2016) Fluorcalciopyrochlore, a new mineral species from Bayan Obo, Inner Mongolia, P.R. China. Canadian Mineralogist: 54: 1285-1291.

Internet Links for FluorcalciopyrochloreHide

Localities for FluorcalciopyrochloreHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Huíla Province
    • Lubango City Council
Amores-Casals, S., Melgarejo, J. C., Bambi, A., Gonçalves, A. O., Morais, E. A., Manuel, J., ... & Molist, J. M. (2019). Lamprophyre-Carbonatite Magma Mingling and Subsolidus Processes as Key Controls on Critical Element Concentration in Carbonatites—The Bonga Complex (Angola). Minerals, 9(10), 601.
  • British Columbia
    • Kamloops Mining Division
      • Blue River carbonatites
        • Verity claim
Hogarth, D. (1961) A Study of Pyrochlore and Betafite, Canadian Mineralogist, v. 6, p. 610-633.
  • Québec
    • Laurentides
      • Deux-Montagnes RCM
        • Oka
Bideaux, R. (1997), v. 3, p. 457.
Hogarth, D. (1961) A Study of Pyrochlore and Betafite, Canadian Mineralogist, v. 6, p. 610-633.
RRUFF ID: R110198
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Chao, G.Y. unpublished analytical data
    • Outaouais
Hogarth, D. (1961) A Study of Pyrochlore and Betafite, Canadian Mineralogist, v. 6, p. 610-633.
    • Saguenay-Lac-Saint-Jean
      • Maria-Chapdelaine RCM
China (TL)
  • Inner Mongolia
    • Baotou City (Baotou Prefecture)
      • Bayan Obo mining district
        • Bayan Obo
Li Guowu, Yang Guangming, Lu Fude, Xiong Ming, Ge Xiangkun and Pan Baoming (2013) Fluorcalciopyrochlore, IMA 2013-055 . CNMNC Newsletter No. 17, October 2013, page 3003; Mineralogical Magazine, 77, 2997-3005.
  • Greenland
    • Kujalleq
      • Igaliku
        • Narsaarsuk Plateau
Bonazzi, P., Bindi, L., Zoppi, M., Capitani, G.C., and Olmi, F. (2006): Single-crystal diffraction and transmission electron microscopy studies of "silicified" pyrochlore from Narssârssuk, Julianehaab district, Greenland. American Mineralogist: 91: 794-801
  • Southwest Finland
    • Laitila
Pavel M. Kartashov analytical data 2019, Joel Dyer collection
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
Rucheng Wang, Fontan, F., and Monchoux, P. (1994): Acta Petrologica et Mineralogica 13(2)
  • Baden-Württemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Vogtsburg im Kaiserstuhl
          • Schelingen
            • Orberg - Badberg area
Gunnar Färber
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Mendig
Blaß, G. and Kruijen, F. (2015) Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26(5), 80-90.
  • Diana
    • Ambanja
      • Antsirabe
Estrade, G. (2014): Le complexe cénozoïque alcalin d’Ambohimirahavavy à Madagascar: origine, évolution et minéralisations en métaux rares.- thèse de doctorat; Université de Toulouse, 256 pages + annexes.
  • Vestfold
    • Larvik
      • Brunlanes
Piilonen, P.C., Poirier, G., Rowe, R. & Larsen, A.O. (2013): Pyrochlore supergroup minerals from the alkaline pegmatites in the Larvik Plutonic Complex, southern Norway. Norsk Bergverksmuseum Skrift 50, 63-82.
  • Azores
    • São Miguel Island
Samples collected by Luigi Chiappino and analysed by Dr. Anthony Kampf, Natural History Museum of Los Angeles County, USA; Lavarde, S., Chiappino, L., Alves, P., Astolfi, M., (2019) Les Minéraux du massif volcanique du Fogo, Ile de São Miguel, Açores, Portugal. Le Règne Mineral, 145, 30-50
  • Chelyabinsk Oblast
Pavel Kartashov (2012) data
Pavel M. Kartashov analytical data of 2018
  • Krasnoyarsk Krai
Chebotarev, D. A., Doroshkevich, A. G., & Sharygin, V. V. (2017). Evolution and Formation Conditions for Pyrochlore-supergroup Minerals of Chuktukon Carbonatite Massif, Chadobets Upland (Krasnoyarsk Territory, Russia). In Magmatism of the Earth and related strategic metal deposits (pp. 47-50).; Doroshkevich, A. G., Chebotarev, D. A., Sharygin, V. V., Prokopyev, I. R., & Nikolenko, A. M. (2019). Petrology of alkaline silicate rocks and carbonatites of the Chuktukon massif, Chadobets upland, Russia: Sources, evolution and relation to the Triassic Siberian LIP. Lithos, 332, 245-260.
    • Enisei Range (Yenisei Ridge; Enisei Ridge)
      • Tatarka Range
RRUFF ID: R060288
  • Murmansk Oblast
    • Khibiny Massif
Yakovenchuk, V.N.; Pakhomovsky, Y.A.; Panikorovskii, T.L.; Zolotarev, A.A.; Mikhailova, J.A.; Bocharov, V.N.; Krivovichev, S.V.; Ivanyuk, G.Y. (2019) Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3-(Si2O7)4(OH,O,F)12, a New Mineral with a Modular Wallpaper Structure, from the Khibiny Alkaline Massif (Kola Peninsula, Russia). Minerals 2019, 9, 219.
    • Northern Karelia
      • Vuoriyarvi alkaline-ultrabasic massif
Kozlov, E.; Fomina, E.; Sidorov, M.; Shilovskikh, V.; Bocharov, V.; Chernyavsky, A.; Huber, M. (2020) The Petyayan-Vara Carbonatite-Hosted Rare Earth Deposit (Vuoriyarvi, NW Russia): Mineralogy and Geochemistry. Minerals 10, 73.
  • Tuva
Doroshkevich, A. G., Veksler, I. V., Izbrodin, I. A., Ripp, G. S., Khromova, E. A., Posokhov, V. F., ... & Vladykin, N. V. (2016). Stable isotope composition of minerals in the Belaya Zima plutonic complex, Russia: Implications for the sources of the parental magma and metasomatizing fluids. Journal of Asian Earth Sciences, 116, 81-96.
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