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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Chalcopyrite from
Bramcrag Quarry, St John's in the Vale, Threlkeld, Eden, Cumbria, England, UK


Locality type:Quarry
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Bramcrag Quarry, St John's in the Vale, Threlkeld, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15413
Long-form Identifier:1:3:15413:4
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.8km (0.5 miles) ⓘWanthwaite Mine, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
4.1km (2.6 miles) ⓘThirlspot Mine, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
5.6km (3.5 miles) ⓘBrundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK
6.2km (3.9 miles) ⓘGlenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK
6.4km (4.0 miles) ⓘGreenside Mine, Patterdale, Eden, Cumbria, England, UK
7.3km (4.5 miles) ⓘWythburn Mine (Wheal Henry; Helvellyn Mine), St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
7.3km (4.5 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
7.6km (4.7 miles) ⓘBannerdale Graphite Mine, Bannerdale, Mungrisdale, Eden, Cumbria, England, UK
7.8km (4.8 miles) ⓘManesty Vein, Grange, Borrowdale, Allerdale, Cumbria, England, UK
8.2km (5.1 miles) ⓘBlack Crag, Above Derwent, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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