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


Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15912
Long-form Identifier:1:3:15912:0
GUID (UUID V4):0
Nearest other occurrences of Dolomite
0.6km (0.4 miles) ⓘPotts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
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
2.3km (1.4 miles) ⓘClints Gill (Roughton South Vein), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘIron Crag, 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
References
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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