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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Brochantite from
Wythburn Mine (Wheal Henry; Helvellyn Mine), St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Brochantite
Formula:Cu4(SO4)(OH)6
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Brochantite data
Locality Data:Click here to view Wythburn Mine (Wheal Henry; Helvellyn Mine), St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:787402
Long-form Identifier:1:3:787402:4
GUID (UUID V4):0
Nearest other occurrences of Brochantite
8.9km (5.6 miles) ⓘMyers Head Mine, Hartsop, Patterdale, Eden, Cumbria, England, UK
10.1km (6.3 miles) ⓘDale Head Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
11.8km (7.3 miles) ⓘStoneycroft Smelter slag locality, Above Derwent, Allerdale, Cumbria, England, UK
13.8km (8.6 miles) ⓘSaddleback Old Mine, Mungrisdale, Eden, Cumbria, England, UK
14.5km (9.0 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
16.6km (10.3 miles) ⓘPaddy End Mine, Coniston, South Lakeland, Cumbria, England, UK
16.6km (10.3 miles) ⓘBuns Mine (Burnbank Mine), Bampton, Eden, Cumbria, England, UK
19.0km (11.8 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
19.2km (11.9 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
19.2km (11.9 miles) ⓘThief Gills, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Paul Nicholson
 
and/or  
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