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Vigezzite

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About VigezziteHide

Formula:
(Ca,Ce)(Nb,Ta,Ti)2O6
Colour:
Orange-yellow
Hardness:
4½ - 5
Crystal System:
Orthorhombic
Name:
Named after its discovery locality in the Vigezzo valley, Piedmont, Italy.

Classification of VigezziteHide

Approved
Approval Year:
1977
4.DF.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
F : With large (+- medium-sized) cations; dimers and trimers of edgesharing octahedra
8.3.7.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
18.2.19

18 : Niobates and Tantalates
2 : Niobates and tantalates containing rare earths but not U

Physical Properties of VigezziteHide

Colour:
Orange-yellow
Streak:
white
Hardness:
4½ - 5 on Mohs scale
Cleavage:
Distinct/Good

Optical Data of VigezziteHide

Type:
Biaxial (+)
RI values:
nα = 2.140 nγ = 2.315
Max Birefringence:
δ = 0.175
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
extreme

Chemical Properties of VigezziteHide

Formula:
(Ca,Ce)(Nb,Ta,Ti)2O6
Common Impurities:
Ta

Crystallography of VigezziteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 7.55 Å, b = 11.03 Å, c = 5.36 Å
Ratio:
a:b:c = 0.684 : 1 : 0.486
Unit Cell V:
446.36 ų (Calculated from Unit Cell)

Type Occurrence of VigezziteHide

Synonyms of VigezziteHide

Other Language Names for VigezziteHide

Relationship of Vigezzite to other SpeciesHide

Other Members of this group:
Aeschynite-(Ce)(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
Aeschynite-(Nd)(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m)
Aeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
Nioboaeschynite-(Ce)(Ce,Ca)(Nb,Ti)2(O,OH)6Orth.
Nioboaeschynite-(Nd)(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)2(O,OH)6Orth.
Nioboaeschynite-(Y)(Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pban
RynersoniteCaTa2O6Orth. mmm (2/m 2/m 2/m)
Tantalaeschynite-(Y)Y(Ta,Ti,Nb)2O6Orth. mmm (2/m 2/m 2/m)

Common AssociatesHide

Associated Minerals Based on Photo Data:
Actinolite-Tremolite Series6 photos of Vigezzite associated with Actinolite-Tremolite Series on mindat.org.
Actinolite2 photos of Vigezzite associated with Actinolite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.DF.05Aeschynite-(Ce)(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
4.DF.05Aeschynite-(Nd)(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m)
4.DF.05Aeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
4.DF.05Nioboaeschynite-(Ce)(Ce,Ca)(Nb,Ti)2(O,OH)6Orth.
4.DF.05Nioboaeschynite-(Nd)(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)2(O,OH)6Orth.
4.DF.05Nioboaeschynite-(Y)(Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pban
4.DF.05RynersoniteCaTa2O6Orth. mmm (2/m 2/m 2/m)
4.DF.05Tantalaeschynite-(Y)Y(Ta,Ti,Nb)2O6Orth. mmm (2/m 2/m 2/m)
4.DF.10ChangbaiitePbNb2O6Trig.
4.DF.15Murataite-(Y)(Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4 Iso. m3m (4/m 3 2/m) : Fm3m

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

8.3.7.2RynersoniteCaTa2O6Orth. mmm (2/m 2/m 2/m)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

18.2.1Fergusonite-(Y)YNbO4Tet. 4/m : I41/a
18.2.2Fergusonite-(Y)-βYNbO4Mon. 2/m
18.2.3Fergusonite-(Ce)(Ce,La,Nd)NbO4
18.2.4Fergusonite-(Ce)-β(Ce,La,Nd)NbO4
18.2.5Fergusonite-(Nd)(Nd,Ce)(Nb,Ti)O4
18.2.6Fergusonite-(Nd)-β(Nd,Ce)NbO4
18.2.7Formanite-(Y)YTaO4Tet. 4/m : I41/a
18.2.8Pyrochlore GroupA2Nb2(O,OH)6Z
18.2.9Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.2.10Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
18.2.11Loparite-(Ce)(Na,REE)Ti2O6
18.2.12Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6Orth. mmm (2/m 2/m 2/m) : Pbcn
18.2.13Aeschynite-(Ce)(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
18.2.14Aeschynite-(Nd)(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m)
18.2.15Aeschynite-(Y)(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6Orth. mmm (2/m 2/m 2/m) : Pmna
18.2.16Nioboaeschynite-(Ce)(Ce,Ca)(Nb,Ti)2(O,OH)6Orth.
18.2.17Nioboaeschynite-(Nd)(Nd,Ce,Ca,Th)(Nb,Ti,Fe,Ta)2(O,OH)6Orth.
18.2.18Tantalaeschynite-(Y)Y(Ta,Ti,Nb)2O6Orth. mmm (2/m 2/m 2/m)
18.2.20Murataite-(Y)(Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4 Iso. m3m (4/m 3 2/m) : Fm3m

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 VigezziteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Graeser, S., Schwander, H., Hänni, H., Mattioli, V. (1979) Vigezzite, (Ca,Ce)(Nb,Ta,Ti)2O6, a new aeschynite-type mineral from the Alps. Mineralogical Magazine: 43: 459-462.
Mattioli, V. (1979) La vigezzite, nuovo minerale. Rivista Mineralogica Italiana: 1979: 5-13.
American Mineralogist (1980): 65: 811-812.
Mattioli, V. (1983) Fersmit und Vigezzit: zwei seltene Minerale von Orcesco im Val Vigezzo. Lapis: 8: 22-24.
Mattioli, V. (1987) Novità mineralogiche in Val d'Ossola. Rivista Italiana di Paleontologia e Stratigrafia: 10: 1-11.
Zhuravleva, L.N., Ryabeva, Y.G., Yurkina, K.V., Solntseva, L.S. (1989) First discovery of vigezzite in USSR, Kola Peninsula. Izvestiya Akademii Nauk SSSR: 8: 134-136.
Giuseppetti G., Tadini C. (1990) The crystal structure of vigezzite, (Ca,Ce)(Nb,Ta,Ti)2O6, intermediate term of the aeschynite series. Neues Jahrbuch für Mineralogie, Monatshefte: 1990: 301-308.
Albertini, C. (1996) I minerali del V.C.O. - Vigezzite. Rivista Ossolana: 2: 78.
Albertini C. (1996) Das Valle Vigezzo (Verbano-Cusio-Ossola) in Piemont, Italien. Eine klassische Mineralfundstelle in den Alpen. Mineralien Welt, VII: 39: 42.
Aurisicchio, C., De Vito, C., Ferrini, V., Orlandi, P. (2001) Nb-Ta oxide minerals from miarolitic pegmatites of the Baveno pink granite, NW Italy. Mineralogical Magazine: 65: 509-522.

Internet Links for VigezziteHide

Localities for VigezziteHide

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.
Brazil
 
  • São Paulo
    • Cajati
Menezes Filho, L.A.D., Atencio, D., Andrade, M.B., Downs, R.T., Chaves, M.L.S.C., Romano, A.W., Scholz, R., Persiano, A.I.C. (2015): Pauloabibite, trigonal NaNbO3, isostructural with ilmenite, from the Jacupiranga carbonatite, Cajati, São Paulo, Brazil. American Mineralogist, 100, 442–446
Canada
 
  • Ontario
    • Renfrew Co.
      • Lyndoch Township
ontariominerals.com
Czech Republic
 
  • Vysočina Region
    • Třebíč District
      • Třebíč
        • Kožichovice
Výravský, J, Škoda, R. & Novak, M. (2017) Kristiansenite, thortveitite and SCNbO4: Products of Ca-metasomatism of Sc-enriched columbite-(Mn) from NYF pegmatite Kožichovice II, Czech Republic. PEG2017. NGF Abstracts and Proceedings, 2017 (2): 169-172.
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baveno
        • Oltrefiume
          • Mount Camoscio
Sergio Varvello collection
      • Omegna
        • Agrano
Varvello, S., Bittarello, E., Ciriotti, M.E. (2013): Vigezzite ricca in Y e Si e a basso contenuto di tantalio: primo ritrovamento per Baveno. Micro, 3/2013, 127-132
      • Ossola Valley
        • Vigezzo Valley
          • Druogno
            • Orcesco
St. Graeser et al.: Mineralogical Magazine 43:459-462 (1979); Mattioli V. (1987) - Novità mineralogiche in Val d'Ossola - Rivista Mineralogica Italiana, Milano, fasc. 1, pp.1-11
          • Trontano
            • Pizzo Marcio
Mattioli, V. (1979 a): I minerali di Pizzo Marcio in Valle Vigezzo. Riv. Mineral. Ital., 3 [1, serie 2], 2 (2-1979), 30-36; Mattioli, V. (1979 b): Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.; Appiani, R., Cini, V., Gentile, P., Mattioli, V., Preite, D., Vignola, P. (1995): Val Vigezzo - I minerali delle albititi. Ed. Linea Due S.r.l., Marnate (Varese), 90 pp.; Guastoni, A., Diella, V., Pezzotta, F., Demartin, F. (2007): Vigezzite and associated Nb-Ta oxides of emerald pegmatitic deposits of Vigezzo Valley (Western Alps, Italy). Crystallization Processes in Granitic Pegmatites - International Meeting. Cavoli, Elba Island, Italy, 23rd-29th May 2005. Abstracts; http://www.minsocam.org/msa/Special/Pig/PIG_Articles/Elba%20Abstracts%2010%20Guastoni.pdf; Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.; Guastoni, A., Diella, V., Pezzotta, F. (2008): Vigezzite and associated oxides of Nb–Ta from emerald-bearing pegmatites of the Vigezzo valley, Western Alps, Italy. Canadian Mineralogist, 46, 619-633; Guastoni, A. (2011): Pizzo Marcio e Alpe Rosso. Genesi delle pegmatiti albitizzate e dei minerali di niobio e tantalio. Riv. Miner. Ital., 35, 4 (4-2011), 246-253; Guastoni, A. (2012): LCT (lithium, cesium, tantalum) and NYF (niobium, yttrium, fluorine) pegmatites in the Central Alps. Proxies of exhumation history of the Alpine nappe stack in the Lepontine Dome. Ph.D. Thesis. University of Padova, Dept. of Geosciences, 159 pp.; Boscardin, M., Mattioli, V., Rocchetti, I. (2013): Minerali della Valle Vigezzo. Litotipografia Alcione, Lavis (Trento), 229 pp.
Madagascar
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Betafo District
        • Andrembesoa Commune
          • Tetezantsio-Andoabatokely Pegmatite Field
Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Vitim Plateau
          • Biraya and Bya Rivers confluence area (Chara Basin)
Koneva A.A., Konev A.A., Vladykin N.V. (2010) Vein complex of the Biraya carbonatite deposit. in Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp.
  • Northern Region
    • Murmanskaya Oblast'
Spain
 
  • Madrid
Garcia-Guinea, J., Correcher, V., Quejido, A., LaIglesia, A., & Can, N. (2005). The role of rare earth elements and Mn 2+ point defects on the luminescence of bavenite. Talanta, 65(1), 54-61.
Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508
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