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Beudantite Subgroup

Formula:
AB
 
3
(XO
 
4
)(SO
 
4
)(OH)
 
6


A subgroup of the Alunite Group (also known as Alunite Supergroup).

Compare the Crandallite Subgroup and the Jarosite Subgroup.

The members of the Beudantite Subgroup have a 1:1 replacement of the (SO4) tetrahedra by (AsO4) or (PO4) tetrahedra. The A positions in this case are completely filled by the divalent cations Ca, Sr, or Pb.

Classification of Beudantite Subgroup

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Chemical Properties of Beudantite Subgroup

Formula:
AB
 
3
(XO
 
4
)(SO
 
4
)(OH)
 
6

Relationship of Beudantite Subgroup to other Species

Minerals in Group:
Beudantite:
PbFe
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
Corkite:
PbFe
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
Gallobeudantite:
PbGa
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
Hidalgoite:
PbAl
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
Hinsdalite:
PbAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
Kemmlitzite:
(Sr,Ce)Al
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
Orpheite:
PbAl
 
3
[(OH)
 
6
|(PO
 
4
,SO
 
4
)
 
2
] (?)
Schlossmacherite:
(H
 
3
O,Ca)Al
 
3
[(OH)
 
6
|(SO
 
4
,AsO
 
4
)
 
2
]
Svanbergite:
SrAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
Woodhouseite:
CaAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]

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 Beudantite Subgroup

Reference List: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.: 556, 1001.

Internet Links for Beudantite Subgroup

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    Localities for Beudantite Subgroup

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    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Iran
     
    • West Azarbaijan Province
      • Takab (Takan Tepe)
    		Daliran, F. (2008): The carbonate rock-hosted epithermal gold deposit of Agdarreh, Takab geothermal field, NW Iran—hydrothermal alteration and mineralisation. Mineralium Deposita, 43, 383-404
    Mineral and/or Locality
    Google
     
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