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


Locality type:Mine
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Comments:'Light and dark coloured varieties' (Shaw, 1970: 65).
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:775
Long-form Identifier:1:3:775:7
GUID (UUID V4):0
Nearest other occurrences of Ankerite
0.9km (0.6 miles) ⓘShort Grain, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
1.1km (0.7 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.2km (0.7 miles) ⓘHay Gill Copper Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (0.9 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘDry Smale Gill, 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
3.2km (2.0 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
3.7km (2.3 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
References
Shaw, W. T. (1972) Mining in the Lake Counties (2nd ed.) Dalesman Books, Clapham, Lancaster.
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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