Alunite Supergroup
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About Alunite Supergroup
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 (X = S, As, P, minor Si, Se, Mo, W) group may be partly protonated.
D = Al, Fe3+, V3+ or Ga3+; minor Cu, Zn, Ge and others.
The XO4 (X = S, As, P, minor Si, Se, Mo, W) 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.
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.
Classification of Alunite Supergroup
Notes:
IMA Approved Group Name
Chemical Properties of Alunite Supergroup
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 (X = S, As, P, minor Si, Se, Mo, W) group may be partly protonated.
A = Na, K, Pb, Rb, NH4, Ag, H3O or H2O.
D = Al, Fe3+, V3+ or Ga3+; minor Cu, Zn, Ge and others.
The XO4 (X = S, As, P, minor Si, Se, Mo, W) group may be partly protonated.
Synonyms of Alunite Supergroup
Relationship of Alunite Supergroup to other Species
Group Members:
| Alunite Group | ||
| Alunite | KAl3(SO4)2(OH)6 | Trig. 3m : R3m |
| Ammonioalunite | (NH4)Al3(SO4)2(OH)6 | Trig. |
| Ammoniojarosite | (NH4)Fe3+3(SO4)2(OH)6 | Trig. 3m : R3m |
| Argentojarosite | AgFe3+3(SO4)2(OH)6 | Trig. 3m : R3m |
| Beaverite-(Cu) | Pb(Fe3+2Cu)(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Beaverite-(Zn) | Pb(Fe3+2Zn)(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Dorallcharite | TlFe3+3(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Huangite | Ca0.5Al3(SO4)2(OH)6 | Trig. |
| Hydroniumjarosite | (H3O)Fe3+3(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Jarosite | KFe3+3(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Natroalunite | NaAl3(SO4)2(OH)6 | Trig. 3m : R3m |
| Natroalunite-2c | (Na,Ca0.5,K)Al3(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Natrojarosite | NaFe3(SO4)2(OH)6 | Trig. 3m : R3m |
| Osarizawaite | Pb(Al2Cu2+)(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Plumbojarosite | Pb0.5Fe3+3(SO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Schlossmacherite | (H3O)Al3(SO4)2(OH)6 | Trig. |
| Walthierite | Ba0.5Al3(SO4)2(OH)6 | Trig. |
| Beudantite Group | AM3(XO4)(SO4)(OH)6 | |
| Beudantite | PbFe3(AsO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Corkite | PbFe3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 | Trig. |
| Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 | Trig. |
| Hinsdalite | PbAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 | Trig. |
| Svanbergite | SrAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| UM2011-07-POSO:AlBaH | BaAl3(PO4)(SO4)(OH)6 | |
| Weilerite | BaAl3(AsO4)(SO4)(OH)6 | |
| Woodhouseite | CaAl3(PO4)(SO4)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Dussertite Group | ||
| Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 | Trig. 3m (3 2/m) |
| Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 | Trig. |
| Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Arsenowaylandite | BiAl3(AsO4)2(OH)6 | Trig. |
| Dussertite | BaFe3+3(AsO4)(AsO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Graulichite-(Ce) | CeFe3+3(AsO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Philipsbornite | PbAl3(AsO4)(AsO3OH)(OH)6 | Trig. |
| Segnitite | PbFe3+3AsO4(AsO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Plumbogummite Group | ||
| Benauite | SrFe3+3(HPO4,PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Crandallite | CaAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Eylettersite | Th0.75Al3(PO4)2(OH)6 | Trig. |
| 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)6 | Trig. 3m (3 2/m) : R3m |
| Galloplumbogummite | Pb(Ga,Al,Ge)3(PO4)2(OH)6 | Trig. 3m : R3m |
| Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 | Mon. m : Bm |
| Goyazite | SrAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Kintoreite-2c | PbFe3+3(PO4)2(OH,H2O)6 | |
| Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 | Trig. 3m (3 2/m) : R3m |
| Springcreekite | BaV3+3(PO4)2(OH,H2O)6 | Trig. 3m (3 2/m) : R3m |
| Unnamed (As-analogue of Zaïrite) | (Bi,Pb)Fe3+3(AsO4)2(OH)6 | |
| Waylandite | BiAl3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Zaïrite | BiFe3+3(PO4)2(OH)6 | Trig. 3m (3 2/m) : R3m |
| Unnamed (Ba-Fe Vanadate) | Ba, Fe, V, O, H |
Other Information
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 petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
References for Alunite Supergroup
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 Supergroup
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https://www.mindat.org/min-29267.html
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Localities for Alunite Supergroup
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The Locality List
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White Mts, Mono Co., California, USA