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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Jarosite from
Potts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Potts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:557149
Long-form Identifier:1:3:557149:9
GUID (UUID V4):0
Nearest other occurrences of Jarosite
0.5km (0.3 miles) ⓘNether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK
0.6km (0.4 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.1km (0.7 miles) ⓘDumpy Stone Level, Caldbeck, Allerdale, Cumbria, England, UK
1.2km (0.7 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (0.9 miles) ⓘHay Gill Copper Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.6km (1.0 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.3km (2.1 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
3.5km (2.2 miles) ⓘBalliway Rigg, Caldbeck, Allerdale, Cumbria, England, UK
References
Mike Leppington collection (visual ID)
 
and/or  
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