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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Chalcocite from
Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Comments:Kingsbury reference.
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15767
Long-form Identifier:1:3:15767:2
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
1.5km (0.9 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.4km (1.5 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
3.0km (1.9 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
8.0km (5.0 miles) ⓘSaddleback Old Mine, Mungrisdale, Eden, Cumbria, England, UK
22.0km (13.7 miles) ⓘDale Head Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
35.0km (21.8 miles) ⓘBirk Fell Mine, Coniston, South Lakeland, Cumbria, England, UK
37.1km (23.1 miles) ⓘBlack Scar Workings, Levers Water, Coniston, South Lakeland, Cumbria, England, UK
References
Kingsbury, A.W.G. and Hartley, J. (MS) (1951) New occurrences of rare minerals in the northern part of the English Lake District: part 1.
Kingsbury, Arthur W.G., Hartley, J. (1957) Beaverite from the Lake District. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (239). 700-702 doi:10.1180/minmag.1957.31.239.10
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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