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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Chalcocite from
Cornriggs Vein, Black Burn Area, Alston Moor, Eden, Cumbria, England, UK


Locality type:Vein
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Cornriggs Vein, Black Burn Area, Alston Moor, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:236753
Long-form Identifier:1:3:236753:8
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
4.4km (2.7 miles) ⓘTynehead Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
9.1km (5.6 miles) ⓘNenthead, Alston Moor, Eden, Cumbria, England, UK
38.8km (24.1 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
39.4km (24.5 miles) ⓘSaddleback Old Mine, Mungrisdale, Eden, Cumbria, England, UK
39.5km (24.6 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
39.5km (24.6 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
39.7km (24.7 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
41.2km (25.6 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
41.5km (25.8 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
42.2km (26.2 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Bridges, T. F., Young, B. (1998) Supergene minerals of the Northern Pennine Orefield - A review. Journal of the Russell Society, 7 (1). 3-14
 
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