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Tsumcorite Group

Big Photo

Rappold Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany
© luigi chiappino

Formula:
AB(XO
 
4
)
 
2
(OH,H
 
2
O)
 
2


A group of complex phosphates, arsenates, vanadates and sulphates with a complicated crystal chemistry (symmetry either triclinic or monoclinic, depending on various ordering schemes).

In the general formula given above, A is typically Pb or Ca, B is typically Fe3+ Mn, Cu, Zn, Co or Ni and X is typically P, As or V.

Classification of Tsumcorite Group

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Chemical Properties of Tsumcorite Group

Formula:
AB(XO
 
4
)
 
2
(OH,H
 
2
O)
 
2

Relationship of Tsumcorite Group to other Species

Minerals in Group:
Cabalzarite:
Ca(Mg,Al,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Cobaltlotharmeyerite:
Ca(Co,Fe
3+
 
,Ni)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Ferrilotharmeyerite:
Ca(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Gartrellite:
Pb(Cu,Fe
3+
 
,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Helmutwinklerite:
Pb(Zn,Cu)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
Lotharmeyerite:
Ca(Zn,Mn
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Lukrahnite:
Ca(Cu,Zn)(Fe
3+
 
,Zn)[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Mawbyite:
Pb(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Mounanaite:
PbFe
3+
2
[VO
 
4
]
 
2
 · 2(OH,F)
Natrochalcite:
NaCu
 
2
[OH|(SO
 
4
)
 
2
] · 2H
 
2
O
Phosphogartrellite:
Pb(Cu,Fe
3+
 
)
 
2
[PO
 
4
,AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Rappoldite:
Pb(Co,Ni,Zn)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
Thometzekite:
Pb(Cu,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Thometzekite:
Pb(Cu,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Zincgartrellite:
Pb(Zn,Fe
3+
 
,Cu)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Group Members:
Cabalzarite
Ca(Mg,Al,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Cobaltlotharmeyerite
Ca(Co,Fe
3+
 
,Ni)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Ferrilotharmeyerite
Ca(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Gartrellite
Pb(Cu,Fe
3+
 
,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Helmutwinklerite
Pb(Zn,Cu)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
Lotharmeyerite
Ca(Zn,Mn
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Mawbyite
Pb(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Mounanaite
PbFe
3+
2
[VO
 
4
]
 
2
 · 2(OH,F)
Natrochalcite
NaCu
 
2
[OH|(SO
 
4
)
 
2
] · 2H
 
2
O
Phosphogartrellite
Pb(Cu,Fe
3+
 
)
 
2
[PO
 
4
,AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Rappoldite
Pb(Co,Ni,Zn)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
Thometzekite
Pb(Cu,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Tsumcorite
Pb(Zn,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
Zincgartrellite
Pb(Zn,Fe
3+
 
,Cu)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)

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 Tsumcorite Group

Reference List:Krause, W., Belendorff, K., Bernhardt, H.-J., McCammon, C., Effenberger, H. & Mikenda, W. (1998): Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite, tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite. Eur. J. Mineral. 10, 179-206.

Frost, Ray L.; Kloprogge, J. Theo; Martens, Wayde N. (2004): Raman spectroscopy of the arsenates and sulphates of the tsumcorite mineral group. Journal of Raman Spectroscopy 35, 28-35.

Frost, R. L. &; Weier, M. (2004): Raman and infrared spectroscopy of tsumcorite mineral group. Neues Jahrbuch fuer Mineralogie, Monatshefte 2004, 317-336.

Mihajlovic, T.; Effenberger, H. (2004): The first proof of protonated anion tetrahedra in the tsumcorite-type compounds. Mineralogical Magazine 68, 757-767.

Internet Links for Tsumcorite Group

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