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
Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK


01591740017361190411282.jpg
Chalcopyrite

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
03904000017271985877078.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
08347060017271985892222.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
06204680017271998644606.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
01591740017361190411282.jpg
Chalcopyrite

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
02863770017365221768025.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
03975530017365221764258.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
05503750017368380594917.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
01591740017361190411282.jpg
Chalcopyrite

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
03904000017271985877078.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
08347060017271985892222.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
06204680017271998644606.jpg
Chalcopyrite, etc.

Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Comments:Occasionally found as crystals to 0.8cm on annkerite, and has been seen from the dumps in crystals to 0.5cm richly investing an ankerite matrix to 10cm x 7cm.
Colour:Metallic yellow with various tarnish colours.
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Ankerite13
Calcite11
Dolomite8
Galena6
Pyrite3
Quartz2
Sphalerite1
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Smallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:3164
Long-form Identifier:1:3:3164:6
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.5km (0.3 miles) ⓘMiddlecleugh Upper Level, Nenthead, Alston Moor, Eden, Cumbria, England, UK
0.9km (0.5 miles) ⓘCaplecleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
1.2km (0.8 miles) ⓘNenthead, Alston Moor, Eden, Cumbria, England, UK
2.1km (1.3 miles) ⓘBrownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor, Eden, Cumbria, England, UK
3.0km (1.9 miles) ⓘNentsberry Haggs Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
5.1km (3.2 miles) ⓘTynebottom Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
5.2km (3.2 miles) ⓘWindy Brow Vein, Alston Moor, Eden, Cumbria, England, UK
6.2km (3.9 miles) ⓘGreat Sulphur vein, Garrigill, Alston Moor, Eden, Cumbria, England, UK
6.3km (3.9 miles) ⓘHeartycleugh Mine, Carrshield, West Allen, Northumberland, England, UK
7.1km (4.4 miles) ⓘBurtree Slits, Cowshill, Stanhope, County Durham, England, UK
References
Collected by many collectors.
 
and/or  
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