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
Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor, Eden, Cumbria, England, UK


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite9
Galena9
Sphalerite2
Quartz1
Calcite1
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:3218
Long-form Identifier:1:3:3218:6
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.9km (0.5 miles) ⓘNenthead, Alston Moor, Eden, Cumbria, England, UK
1.1km (0.7 miles) ⓘNentsberry Haggs Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
1.3km (0.8 miles) ⓘCaplecleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
2.1km (1.3 miles) ⓘSmallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
2.6km (1.6 miles) ⓘMiddlecleugh Upper Level, Nenthead, Alston Moor, Eden, Cumbria, England, UK
4.4km (2.8 miles) ⓘHeartycleugh Mine, Carrshield, West Allen, Northumberland, England, UK
4.7km (2.9 miles) ⓘTynebottom Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
6.6km (4.1 miles) ⓘWindy Brow Vein, Alston Moor, Eden, Cumbria, England, UK
6.7km (4.2 miles) ⓘGreat Sulphur vein, Garrigill, Alston Moor, Eden, Cumbria, England, UK
8.4km (5.2 miles) ⓘAllenheads Mine (Beaumont Mine), Allendale, Northumberland, England, UK
References
Green, David I., McCallum, David, Wood, Mike (2000) Famous Mineral Localities: The Brownley Hill Mine, Alston Moor District, Cumbria, England. The Mineralogical Record, 31 (3) 231-250
 
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