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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Siderite from
Coalcleugh Mine, Coalcleugh, West Allen, Northumberland, England, UK


Locality type:Mine
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz4
Fluorite3
Sphalerite3
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Coalcleugh Mine, Coalcleugh, West Allen, Northumberland, England, UK
Data Identifiers
Mindat Occurrence Record ID:280301
Long-form Identifier:1:3:280301:2
GUID (UUID V4):0
Nearest other occurrences of Siderite
2.2km (1.4 miles) ⓘWellhopehead Mine, West Allen, Northumberland, England, UK
2.5km (1.5 miles) ⓘSmallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
2.5km (1.5 miles) ⓘRampgill Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
2.5km (1.6 miles) ⓘBrownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor, Eden, Cumbria, England, UK
2.8km (1.7 miles) ⓘSwinhope Moor, Allendale, Northumberland, England, UK
3.1km (1.9 miles) ⓘPark Level Mine, Killhope Burn, Stanhope, County Durham, England, UK
5.3km (3.3 miles) ⓘWellheads Hush, Stanhope, County Durham, England, UK
5.9km (3.7 miles) ⓘAllenheads Mine (Beaumont Mine), Allendale, Northumberland, England, UK
6.2km (3.9 miles) ⓘSt Peter's Mine, Sparty Lea, Allendale, Northumberland, England, UK
6.4km (4.0 miles) ⓘAshgillfield Mine (Ashgill Fields Mine), Alston Moor, Eden, Cumbria, England, UK
References
Dunham, K.C. (1990) Geology of the Northern Pennine Orefield, Volume 1, Tyne to Stainmore. 2nd edition, British Geological Survey.
 
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