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
Grains Gill, Mungrisdale, Eden, Cumbria, England, UK


Locality type:River Valley
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Grains Gill, Mungrisdale, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:14646
Long-form Identifier:1:3:14646:3
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
0.2km (0.1 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
0.4km (0.3 miles) ⓘSmith vein, Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK
1.0km (0.6 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
1.2km (0.8 miles) ⓘWet Swine Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.2km (2.0 miles) ⓘShort Grain, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘDeer Hills, Caldbeck, Allerdale, Cumbria, England, UK
3.6km (2.2 miles) ⓘDumpy Stone Level, Caldbeck, Allerdale, Cumbria, England, UK
3.7km (2.3 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Kitchen, C. S. (1934). The Skiddaw Granite and its residual products. Quarterly Journal of the Geological Society, 90(1-4), 158-200.
 
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