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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Psilomelane from
Driggith Mine, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Driggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:8936
Long-form Identifier:1:3:8936:4
GUID (UUID V4):0
Nearest other occurrences of Psilomelane
0.6km (0.4 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
0.9km (0.6 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (0.9 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.6km (1.0 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
2.1km (1.3 miles) ⓘHay Gill Copper Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.3km (1.4 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
2.4km (1.5 miles) ⓘTodd Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.4km (1.5 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Davidson, W.F. and Thomson, N. (1951) Some notes on the minerals of Westmorland and Cumberland. North West Naturalist, 23 (for 1948), 136-154.
Stanley, Chris J., Vaughan, David J. (1981) Native antimony and bournonite intergrowths in galena from the English Lake District. Mineralogical Magazine, 44 (335) 257-260 doi:10.1180/minmag.1981.044.335.02
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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