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Crandallite Subgroup

Big Photo

Les Montmins Mine (Ste Barbe vein), Échassières, Ébreuil, Allier, Auvergne, France
© Chollet Pascal



A subgroup of the Alunite Supergroup.

Comprises phosphate and arsenate members of Ca, Sr, Ba and Pb (note, however, that Pb members are sometimes assigned to the Beudantite Subgroup of mixed sulphate-phosphates/arsenates).

Classification of Crandallite Subgroup

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Relationship of Crandallite Subgroup to other Species

Minerals in Group:
Arsenocrandallite:
(Ca,Sr)Al
 
3
[(OH)
 
5
|(AsO
 
4
,PO
 
4
)
 
2
] · H
 
2
O
Arsenogorceixite:
BaAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
Arsenogoyazite:
SrAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
Crandallite:
CaAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
Dussertite:
BaFe
3+
3
[(OH)
 
5
|(AsO
 
4
)
 
2
]
Gorceixite:
BaAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
Goyazite:
SrAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
Kintoreite:
PbFe
3+
3
[(OH,H
 
2
O)
 
6
|(PO
 
4
)
 
2
]
Philipsbornite:
PbAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
Plumbogummite:
PbAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
Segnitite:
PbFe
3+
3
[(OH,H
 
2
O)
 
6
|(AsO
 
4
)
 
2
]
Springcreekite:
BaV
3+
3
[(OH,H
 
2
O)
 
6
|(PO
 
4
)
 
2
]

Other Names for Crandallite Subgroup

Synonyms:
Plumbogummite Group
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.

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    Localities for Crandallite 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.
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Santa Catalina
          • Guanaco (Huanaco)
    		Ondruš, P., Veselovský, F, Sejkora, J., Skála, R., Pažout, R., Frýda, J., Gabašová, A., Vajdak, J. (2005): Lemanskiite, NaCaCu5(AsO4)4Cl•5H2O, a new mineral species from the Abundancia mine, Chile. Can. Mineral. 44, 523-531.
    France
     
    • Auvergne
      • Allier
        • Ébreuil
          • Échassières
    		in the collection of Chollet Pascal
    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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