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Alunite Supergroup

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Woodhouseite
White Mts, Mono Co., California, USA
© 2009 Michael C. Roarke




Formula:
AD
 
3
(XO
 
4
)
 
2
(OH)
 
6
A = Na, K, Pb, Rb, NH4, Ag, or H2O
D = Al, Fe3+, V3+ or Ga3+


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.

Classification of Alunite Supergroup

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Chemical Properties of Alunite Supergroup

Formula:
AD
 
3
(XO
 
4
)
 
2
(OH)
 
6


A = Na, K, Pb, Rb, NH4, Ag, or H2O
D = Al, Fe3+, V3+ or Ga3+
Simplified for copy/paste:AD3(XO4)2(OH)6

Relationship of Alunite Supergroup to other Species

Group Members:
Alunite Group 
  Alunite 
KAl
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Ammonioalunite 
(NH
 
4
)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Ammoniojarosite 
(NH
 
4
)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
  Argentojarosite 
AgFe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
  Beaverite-(Cu) 
Pb(Fe
3+
 
,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Beaverite-(Zn) 
Pb(Fe
3+
2
Zn)(SO
 
4
)
 
2
(OH)
 
6
  Dorallcharite 
TlFe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
  Huangite 
Ca
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Hydroniumjarosite 
(H
 
3
O)Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
  Jarosite 
KFe
3+
 
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Natroalunite 
NaAl
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Natroalunite-2c 
(Na,Ca
 
0.5
,K)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Natrojarosite 
NaFe
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Osarizawaite 
Pb(Al,Cu)
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Plumbojarosite 
Pb
 
0.5
Fe
3+
3
(SO
 
4
)
 
2
(OH)
 
6
  Schlossmacherite 
(H
 
3
O)Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
  Walthierite 
Ba
 
0.5
Al
 
3
(SO
 
4
)
 
2
(OH)
 
6
Beudantite Group 
AM
 
3
(XO
 
4
)(SO
 
4
)(OH)
 
6
  Beudantite 
PbFe
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
  Corkite 
PbFe
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
  Gallobeudantite 
PbGa
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
  Hidalgoite 
PbAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
  Hinsdalite 
PbAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
  Kemmlitzite 
SrAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
  Svanbergite 
SrAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
  Weilerite 
BaAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
  Woodhouseite 
CaAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
Dussertite Group 
  Arsenocrandallite 
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Arsenoflorencite-(Ce) 
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
  Arsenoflorencite-(La) 
LaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
  Arsenoflorencite-(Nd) 
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
  Arsenogorceixite 
BaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Arsenogoyazite 
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Arsenowaylandite 
BiAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
  Dussertite 
BaFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
5
  Graulichite-(Ce) 
CeFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
6
  Philipsbornite 
PbAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Segnitite 
PbFe
3+
3
(AsO
 
4
)
 
2
(OH,H
 
2
O)
 
6
Plumbogummite Group 
  Benauite 
SrFe
3+
3
(HPO
 
4
,PO
 
4
)
 
2
(OH)
 
6
  Crandallite 
CaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Eylettersite 
Th
 
0.75
Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Florencite-(Ce) 
CeAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Florencite-(La) 
LaAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Florencite-(Nd) 
(Nd,La,Ce)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Florencite-(Sm) 
(Sm,Nd)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Galloplumbogummite 
Pb(Ga,Al)
 
3-x
GeH
 
1-x
(PO
 
4
)
 
2
(OH)
 
6
for 0 ≤ x ≤ 1
  Gorceixite 
BaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Goyazite 
SrAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Kintoreite 
PbFe
 
3
(PO
 
4
)(PO
 
3
OH)(OH)
 
6
  Kintoreite-2c 
PbFe
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
  Plumbogummite 
PbAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
· H
 
2
O
  Springcreekite 
BaV
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
  Waylandite 
BiAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
  Zaïrite 
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6
Unnamed (Ba-Fe Vanadate) 
Ba, Fe, V, O, H

Other Names for Alunite Supergroup

Synonyms:
Alunite Family
Other Languages:

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Alunite Supergroup

Reference List:

- +
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.

Internet Links for Alunite Supergroup

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  • Localities for Alunite Supergroup

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