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
Nether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK


Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Comments:Kingsbury reference. Kingsbury and Hartley (1958): "in oxidized vein-material derived from an old collapsed cross-cut near the farm of Nether Row, driven on a north-west-south-east vein, as crystalline aggregates, of a golden-brown colour, in saccharoidal quartz (B.M. 1956, 75; 1958, 46); also in similar vein-material from an old cross-cut, almost certainly to the same vein, between Sandbed and Potts Gill mines, half a mile to the south-east."
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Nether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:6545
Long-form Identifier:1:3:6545:0
GUID (UUID V4):0
Nearest other occurrences of Jarosite
0.5km (0.3 miles) ⓘPotts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.4 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.4 miles) ⓘDumpy Stone Level, Caldbeck, Allerdale, Cumbria, England, UK
1.3km (0.8 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.6km (1.0 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘHay Gill Copper Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.2km (2.0 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
3.3km (2.1 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.7km (2.3 miles) ⓘBalliway Rigg, Caldbeck, Allerdale, Cumbria, England, UK
References
Kingsbury, Arthur W. G., Hartley, J. (1958) Jarosite and natrojarosite from the Lake District. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (240). 813-815 doi:10.1180/minmag.1958.031.240.09
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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