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Alunite Supergroup

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Formula:
AD3(XO4)2(OH)6
A = Na, K, Pb, Rb, NH4, Ag, H3O or H2O.
D = Al, Fe3+, V3+ or Ga3+; minor Cu, Zn, Ge and others.
The XO4 group may be partly protonated.
Also known as Alunite Family or Alunite Group.
This supergroup includes: Alunite Group, Beudantite Group, Plumbogummite Group and Dussertite Group. Various other names have been used for these groups (see Mills et al. 2009; Bayliss et al. 2010).

Crystals in the group are generally small, imperfect, and rare. Habit is usually either tabular {0001} or pseudo-cubic (cube-like rhombohedron) to pseudo-cuboctahedral, or acute-rhombohedral. Acicular habits are extremely rare.


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Classification of Alunite SupergroupHide

Approved
Notes:
Group Name

Chemical Properties of Alunite SupergroupHide

Formula:
AD3(XO4)2(OH)6

A = Na, K, Pb, Rb, NH4, Ag, H3O or H2O.
D = Al, Fe3+, V3+ or Ga3+; minor Cu, Zn, Ge and others.
The XO4 group may be partly protonated.

Synonyms of Alunite SupergroupHide

Other Language Names for Alunite SupergroupHide

Relationship of Alunite Supergroup to other SpeciesHide

Group Members:
Alunite Group 
  Alunite KAl3(SO4)2(OH)6Trig. 3m : R3m
  Ammonioalunite (NH4)Al3(SO4)2(OH)6Trig.
  Ammoniojarosite (NH4)Fe3+3(SO4)2(OH)6Trig. 3m : R3m
  Argentojarosite AgFe3+3(SO4)2(OH)6Trig. 3m : R3m
  Beaverite-(Cu) Pb(Fe3+2Cu)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Beaverite-(Zn) Pb(Fe3+2Zn)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Dorallcharite TlFe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Huangite Ca0.5Al3(SO4)2(OH)6Trig.
  Hydroniumjarosite (H3O)Fe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Jarosite KFe3+ 3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Natroalunite NaAl3(SO4)2(OH)6Trig. 3m : R3m
  Natroalunite-2c (Na,Ca0.5,K)Al3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Natrojarosite NaFe3(SO4)2(OH)6Trig. 3m : R3m
  Osarizawaite Pb(Al2Cu2+)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Plumbojarosite Pb0.5Fe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Schlossmacherite (H3O)Al3(SO4)2(OH)6Trig.
  Walthierite Ba0.5Al3(SO4)2(OH)6Trig.
Beudantite Group AM3(XO4)(SO4)(OH)6
  Beudantite PbFe3(AsO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
  Corkite PbFe3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
  Gallobeudantite PbGa3(AsO4)(SO4)(OH)6Trig.
  Hidalgoite PbAl3(AsO4)(SO4)(OH)6Trig.
  Hinsdalite PbAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
  Kemmlitzite SrAl3(AsO4)(SO4)(OH)6Trig.
  Svanbergite SrAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
  Weilerite BaAl3(AsO4)(SO4)(OH)6
  Woodhouseite CaAl3(PO4)(SO4)(OH)6Trig. 3m (3 2/m) : R3m
Dussertite Group 
  Arsenocrandallite CaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
  Arsenoflorencite-(Ce) CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Arsenoflorencite-(La) LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Arsenoflorencite-(Nd) NdAl3(AsO4)2(OH)6Trig.
  Arsenogorceixite BaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Arsenogoyazite SrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Arsenowaylandite BiAl3(AsO4)2(OH)6Trig.
  Dussertite BaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Graulichite-(Ce) CeFe3+3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Philipsbornite PbAl3(AsO4)2(OH)5 · H2OTrig.
  Segnitite PbFe3+3(AsO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
Plumbogummite Group 
  Benauite SrFe3+3(HPO4,PO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Crandallite CaAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Eylettersite Th0.75Al3(PO4)2(OH)6Trig.
  Florencite-(Ce) CeAl3(PO4)2(OH)6
  Florencite-(La) LaAl3(PO4)2(OH)6
  Florencite-(Nd) NdAl3(PO4)2(OH)6
  Florencite-(Sm) SmAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Galloplumbogummite Pb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
  Gorceixite BaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
  Goyazite SrAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Kintoreite PbFe3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Kintoreite-2c PbFe3+3(PO4)2(OH,H2O)6
  Plumbogummite PbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
  Springcreekite BaV3+3(PO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
  Waylandite BiAl3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
  Zaïrite BiFe3+3(PO4)2(OH)6Trig. 3m (3 2/m) : R3m
Unnamed (Ba-Fe Vanadate) Ba, Fe, V, O, H

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.

Alunite Supergroup in petrologyHide

Common component of (items highlighted in red)

References for Alunite SupergroupHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hendricks (1937) American Mineralogist: 22: 773.
Lemmon (1937) American Mineralogist: 22: 939.
McConnell (1942) American Journal of Science: 240: 649.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 555-556.
Mills, S.J., Hatert, F., Nickel, E.H. & Ferraris, G. (2009) The standardisation of mineral group hierarchies: application to recent nomenclature proposals. Eur. J. Mineral. 21: 1073–1080.
Sato, E., Nakai, I., Miyawaki, R. & Matsubara, S. (2009): Crystal structures of alunite family minerals: beaverite, corkite, alunite, natroalunite, jarosite, svanbergite, and woodhouseite. Neues Jahrbuch für Mineralogie Abhandlungen 185, 313-322.
Bayliss, P., Kolitsch, U., Nickel, E.H., Pring, A. (2010): Alunite supergroup: recommended nomenclature. Mineralogical Magazine, 74, 919-927.
Grey, I. E. Shanks, F. L. Wilson, N. C. Mumme, W. G. and Birch, W. D. (2011): Carbon incorporation in plumbogummite-group minerals. Mineral. Mag. 75, 145-158.
Maubec, N., Lahfid, A., Lerouge, C., Wille, G., Michel, K. (2012): Characterization of alunite supergroup minerals by Raman spectroscopy. Spectrochimica Acta A, 96, 925-939.
Pekov, I.V., Khanin, D.A., Yapaskurt, V.O., Pakunova, A.V., Ekimenkova, I.A. (2015): Minerals of the beudantite—segnitite series from the oxidation zone of Berezovskoe gold ore deposit, the Middle Urals: variations of chemical composition, behavior of admixtures, antimony-bearing varieties. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva, 144 (3), 89-105.
Pekov, I.V., Khanin, D.A., Yapaskurt, V.O., Pakunova, A.V., Ekimenkova, I.A. (2016): Minerals of the beudantite–segnitite series from the oxidation zone of the Berezovskoe gold deposit, Middle Urals: Chemical variations, behavior of admixtures, and antimonian varieties. Geology of Ore Deposits 58, 600-611. [English version of Pekov et al., 2015]

Internet Links for Alunite SupergroupHide

Localities for Alunite SupergroupHide

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 ListShow