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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Arsenopyrite from
Wet Swine Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Stream
Classification
Species:Arsenopyrite
Formula:FeAsS
Comments:Uncommon in the 'antimony vein' as euhedral tabular crystals to 60µm thick; the cores are enriched in antimony (< 7wt% Sb) (Fortey et al., 1984).
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Wet Swine Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:1045
Long-form Identifier:1:3:1045:0
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
1.1km (0.7 miles) ⓘSmith vein, Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK
1.2km (0.8 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
1.3km (0.8 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
1.9km (1.2 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
3.5km (2.2 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.7km (2.3 miles) ⓘShort Grain, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
4.1km (2.5 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
4.1km (2.5 miles) ⓘDeer Hills, Caldbeck, Allerdale, Cumbria, England, UK
4.4km (2.7 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
4.5km (2.8 miles) ⓘDumpy Stone Level, Caldbeck, Allerdale, Cumbria, England, UK
References
Fortey, N. J., Ingham, J. D., Skilton, B. R. H., Young, B., Shepherd, T. J. (1984) Antimony mineralisation at Wet Swine Gill, Caldbeck Fells, Cumbria. Proceedings of the Yorkshire Geological Society, 45 (1-2) 59-65 doi:10.1144/pygs.45.1-2.59
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
 
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