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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Marcasite from
Bonser Mine, Coniston, South Lakeland, Cumbria, England, UK


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Bonser Mine, Coniston, South Lakeland, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:16876
Long-form Identifier:1:3:16876:6
GUID (UUID V4):0
Nearest other occurrences of Marcasite
0.4km (0.3 miles) ⓘConiston Copper Mines, Coniston, South Lakeland, Cumbria, England, UK
18.8km (11.7 miles) ⓘDale Head Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
20.2km (12.6 miles) ⓘGreenside Mine, Patterdale, Eden, Cumbria, England, UK
20.8km (12.9 miles) ⓘGoldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
23.6km (14.6 miles) ⓘCobalt Mine, Scar Crag, Causey Pike, Above Derwent, Allerdale, Cumbria, England, UK
24.6km (15.3 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
29.8km (18.5 miles) ⓘShap Blue Quarry, Shap Rural, Eden, Cumbria, England, UK
34.5km (21.5 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
37.5km (23.3 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
38.0km (23.6 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Stanley, C. J., Vaughan, D. J. (1982) Mineralization in the Bonser vein, Coniston, English Lake District: mineral assemblages, paragenesis, and formation conditions. Mineralogical Magazine, 46 (340) 343-350 doi:10.1180/minmag.1982.046.340.08
Day, Harry (1999) BMS Database, British Micromount Society.
 
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