Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Pharmacosiderite from
Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Pharmacosiderite
Formula:KFe43+(AsO4)3(OH)4 · 6-7H2O
Comments:Kingsbury reference.
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Pharmacosiderite data
Locality Data:Click here to view Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17111
Long-form Identifier:1:3:17111:3
GUID (UUID V4):0
Nearest other occurrences of Pharmacosiderite
0.6km (0.4 miles) ⓘDeer Hills, Caldbeck, Allerdale, Cumbria, England, UK
0.6km (0.4 miles) ⓘDeer Hills Baryte Mine, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.4 miles) ⓘNether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.4 miles) ⓘDumpy Stone Level, Caldbeck, Allerdale, Cumbria, England, UK
1.1km (0.7 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.2km (0.8 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.0km (1.2 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
3.5km (2.2 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
4.3km (2.6 miles) ⓘBurdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
References
Kingsbury, Arthur W. G., Hartley, J. (1960) Carminite and beudantite from the northern part of the Lake District and from Cornwall. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (249) 423-432 doi:10.1180/minmag.1960.032.249.01
Hartley, J. (1984) A list of minerals associated with the ore deposits of the Caldbeck Fells, Cumbria. Transactions of the Leeds Geological Association, 10 (3) 22-39
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
 
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