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Francevillite

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Formula:
Ba(UO2)2(VO4)2 · 5H2O
Hardness:
3
Crystal System:
Orthorhombic
Name:
Named in 1957 by G. Branche, M.E. Ropert, F. Chantret, B. Morignat, and R. Pouget for Franceville, the city nearest the type locality.
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Classification of FrancevilliteHide

Approved, 'Grandfathered' (first described prior to 1959)
7/E.11-100
4.HB.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
B : Uranyl Sorovanodates
40.2a.27.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
21.4.10

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni

Physical Properties of FrancevilliteHide

Hardness:

Optical Data of FrancevilliteHide

Type:
Biaxial (-)
RI values:
nα = 1.750 - 1.785 nβ = 1.910 - 1.952 nγ = 1.945 - 2.002
2V:
Measured: 52° , Calculated: 46° to 52°
Max Birefringence:
δ = 0.195 - 0.217
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong

Chemical Properties of FrancevilliteHide

Formula:
Ba(UO2)2(VO4)2 · 5H2O

Crystallography of FrancevilliteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 10.41 Å, b = 8.51 Å, c = 16.76 Å
Ratio:
a:b:c = 1.223 : 1 : 1.969
Unit Cell V:
1,484.75 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of FrancevilliteHide

Synonyms of FrancevilliteHide

Other Language Names for FrancevilliteHide

Relationship of Francevillite to other SpeciesHide

Other Members of this group:
CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
Chemically related to group(s):
Carnotite GroupA group of metal-uranyl vanadates.
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Curienite41 photos of Francevillite associated with Curienite on mindat.org.
Chervetite30 photos of Francevillite associated with Chervetite on mindat.org.
Mounanaite16 photos of Francevillite associated with Mounanaite on mindat.org.
Carnotite3 photos of Francevillite associated with Carnotite on mindat.org.
Autunite2 photos of Francevillite associated with Autunite on mindat.org.
Selenium2 photos of Francevillite associated with Selenium on mindat.org.
Straczekite2 photos of Francevillite associated with Straczekite on mindat.org.
Schubnelite1 photo of Francevillite associated with Schubnelite on mindat.org.
Bariopharmacosiderite1 photo of Francevillite associated with Bariopharmacosiderite on mindat.org.
Bariandite1 photo of Francevillite associated with Bariandite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.HB.05CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
4.HB.05Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
4.HB.10SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
4.HB.15CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
4.HB.15FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
4.HB.20MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
4.HB.20VanuraliteAl(UO2)2(VO4)2(OH) · 11H2OMon.
4.HB.25MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
4.HB.25TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
4.HB.30StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
4.HB.35UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
4.HB.40RauviteCa(UO2)2(V10O28) · 16H2O

Related Minerals - Dana Grouping (8th Ed.)Hide

40.2a.27.2CurienitePb(UO2)2(VO4)2 · 5H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.4.1UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
21.4.2Vanuranylite(H3O)2(UO2)2(VO4)2 · 4H2O
21.4.3StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
21.4.4CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
21.4.5Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
21.4.6SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
21.4.7MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
21.4.8TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
21.4.9RauviteCa(UO2)2(V10O28) · 16H2O
21.4.11MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
21.4.12VanuraliteAl(UO2)2(VO4)2(OH) · 11H2OMon.
21.4.13CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
21.4.14FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
21.4.15Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
21.4.16Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2OOrth. mmm (2/m 2/m 2/m)
21.4.17PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.4.18BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
21.4.19ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
21.4.20HeyitePb5Fe2+2(VO4)2O4Mon.
21.4.21MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
21.4.22SchubneliteFe3+VO4 · H2OTric.
21.4.23FervaniteFe3+4V5+4O16 · 5H2OMon.
21.4.24KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
21.4.25Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2OMon.
21.4.26Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
21.4.27KolovratiteNixZny(VO4)0.67(x+y) · nH2O

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 FrancevilliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Branche, G., Ropert, M.E., Chantret, F., Morignat, B., Pouget, R. (1957) La francevillite, nouveau minéral uranifère. Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences: 245: 89-91. (in French)
Fleischer, M. (1958) New mineral names. American Mineralogist: 43: 180.
Mereiter, K. (1986) Crystal structure refinements of two francevillites, (Ba,Pb)[(UO2)2V2O8]·5H2O. Neues Jahrbuch für Mineralogie, Monatshefte: 552-560.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for FrancevilliteHide

Localities for FrancevilliteHide

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.
Australia
 
  • Northern Territory
    • Roper Gulf Region
Henry, D.A., Pogson, R.E. and Williams, P.A. (2005) Threadgoldite from the South Alligator Valley uranium field, Northern Territory, Australia: second world occurrence. , Australian Journal of Mineralogy, 11, 7-11
  • South Australia
    • Olary Province
      • Radium Hill area
Canada
 
  • Prince Edward Island
ROSE, E.R. (1973) Geology of vanadium and vanadiferous occurrences. Geological Survey of Canada, Economic Geology Reports. 27, 130p.
  • Québec
    • Nord-du-Québec
      • Baie-James
        • Otish Mts
SASSANO, G. & ROCHELEAU, M. (1987) Quelques minéraux d'uranium des Bassin d'Otish et de Mistassini, Québec. Canadian Mineralogist 25, 185-193.
China
 
  • Hunan Province
    • Huaihua Prefecture
      • Xupu Co.
National Geological Archives of China database, record no. 51092
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Hradec Králové Region
      • Žamberk
Pauliš, P., Moravec, B.: Francevillit z Litic n. Orlicí. Časopis pro mineralogii a geologii, 1990, roč. 35, č. 4, s. 425-427.
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Katanga Copper Crescent
      • Kambove District
      • Kolwezi District
MinRec 20:287-288
        • Kolwezi
No reference listed
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
Le Règne Minéral, (33), 5-25.
    • Cantal
      • Mauriac
        • Champagnac
J.-J. Périchaud: "Les Minéraux d'Auvergne", Vol. 2, 1986
    • Puy-de-Dôme
      • Saint-Amant-Tallende
        • Olloix
H. Agrinier and J. Geffroy : "Les Minéraux Séléniés du Point Uranifère de Liauzun-en-Olloix (Puy de Dôme) : Clausthalite, Sélénium Natif, Sélénite de Plomb et Chalcoménite", Bull. Soc. Fr. Minéral. Cristallogr., 1967, XC, N°3, 383-386
  • Grand Est
    • Vosges
      • Gérardmer
Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
  • Occitanie
    • Aveyron
Le Règne Minéral, Hors Série IV, 1998
      • Gages
Le Règne Minéral, Hors Série IV, 1998
  • Provence-Alpes-Côte d'Azur
    • Var
      • Le Pradet
Le Règne Minéral, Hors Série IV, 1998
Gabon
 
  • Haut-Ogooué Province
    • Franceville
C.R.Acad.Sci.Paris (1957) 245, 89-91
Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Triberg
        • Nußbach
No reference listed
      • Wolfach
        • Oberwolfach
          • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); WALENTA, K. (1993): Neue Mineralfunde von der Grube Clara (5. Folge). - Lapis 18 (1), 16-23; KOLITSCH, U. & GÖTZINGER, M. (2000): Einige Neufunde aus der Grube Clara im mittleren Schwarzwald: Eulytin, Namibit, Volborthit, Gearksutit, Spertiniit, Monazit-(La), Protasit, Sainfeldit, Cyanotrichit und Vauquelinit. - Erzgräber 14, 33-47; Gröbner, J., Kolitsch, U. und Bayerl, R. (2005): Interessante Uranmineralien im Stinkspat der Grube Clara. Lapis 30 (10), 34-39; 90; Gröbner, J., Bayerl, R. und Kolitsch, U. (2006): Weitere Beobachtungen zu den Uran- und Vanadium-Paragenesen der Grube Clara aus den Jahren 2002, 2004 und 2005. Erzgräber 20, 1-10
  • Bavaria
    • Franconia
      • Spessart
        • Aschaffenburg
          • Dörrmorsbach
A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
  • Rhineland-Palatinate
    • Palatinate
      • Winnweiler
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Saxony
    • Vogtland
      • Oelsnitz
Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
Italy
 
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Giudicarie Valleys
        • Rendena Valley
          • Bocenago & Spiazzo
Campostrini I.(2013): Minerali secondari dei giacimenti uraniferi nelle Arenarie di Val Gardena del Trentino occidentale (Alpi Meridionali, Italia). Studi Trent. Sci. Nat., 93, pagg. 89-114.
Kazakhstan
 
  • Almaty Province (Almaty Oblysy; Almati Oblast')
    • Middle Ili River
      • Dzharkenskaya Depression
Pavel M. Kartashov data
Kyrgyzstan
 
  • Osh Oblast
    • Alai Range (Alay Range)
Morocco
 
  • Marrakech-Safi Region
    • El Kelaâ des Sraghna Province
      • Youssoufia
W.Paar (1974)
Niger
 
  • Agadez Department
    • Arlit
J. P. le Roux and P. D. Toens (1987) in Gondwana six: stratigraphy, sedimentology, and paleontology, Volume 2 edited by Garry D. MacKenzie American Geophysical Union pp 139-146
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Aldan Shield
        • Chara and Tokko Rivers Confluence
Pavel M. Kartashov data
  • Northern Region
    • Karelia Republic
      • Lake Onega
        • Zaonezhie peninsula
          • Velikaya Guba uran-vanadium deposit
Pavel M. Kartashov data
Slovenia
 
  • Todraž
Dolenec, T. (1985): Secondary uranium minerals from the Zirovski Vrh uranium ore deposit. Rudarsko-Metalurski Zbornik 32, 195-206 (in Serbo-Croatian)
South Korea
 
  • Chungcheongnam-do (Ch'ungch'ong-namdo; Chungcheongnamdo)
    • Geumsan-gun
Cheong, C. S., Jeong, G. Y., Kim, H., Choi, M. S., Lee, S. H., & Cho, M. (2003). Early Permian peak metamorphism recorded in U–Pb system of black slates from the Ogcheon metamorphic belt, South Korea, and its tectonic implication. Chemical Geology, 193(1), 81-92.
Spain
 
  • Extremadura
    • Badajoz
      • Mérida
        • Carija hill
Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp
UK
 
  • England
    • Cornwall
      • St Austell District
        • St Stephen-in-Brannel
          • St Stephen
Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177.; Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
USA
 
  • Montana
    • Carbon Co.
Anita Moore-Nall and David R. Lageson (2015) Elevated REE in Ore Minerals of the Pryor Mountain Mining District, South Central Montana. 2015 Mining and Mineral Symposium, Montana Bureau of Mines and Geology pp47-49.
Anita Moore-Nall and David R. Lageson (2015) Elevated REE in Ore Minerals of the Pryor Mountain Mining District, South Central Montana. 2015 Mining and Mineral Symposium, Montana Bureau of Mines and Geology pp47-49.
  • Pennsylvania
    • Carbon Co.
  • Utah
    • San Juan Co.
      • La Sal District (Paradox Valley District)
        • La Sal
Zimbabwe
 
  • Matabeleland North
    • Binga District (Sebungwe District)
      • Lubimbi Hot Springs
Gallagher M. J. (1966): Francevillite from Rhodesia.- Bulletin of the Geological Survey of Great Britain, Vol. 25, (page 92).
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