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Sphalerite from
Smallcleugh Mine, Nenthead, Alston Moor District, Cumbria, England, UK

Classification
Species:Sphalerite
Comments:Specimens are dark brown to black due to the presence of iron in solid solution. Small crystals less than 2mm are sometimes of the ruby variety.
Of particular interest and great rarity are specimens from the replacement deposit above the Hydraulic Shaft, which have fossils coated by white calcite and sprinkled with black sphalerite crystals to 1cm.
The deposit was originally discovered by David Lloyd, and Richard Barstow in the 1970's. David was testing the level wall for hollow sounds indicating a possible cavity, when part of the wall collapsed in leading to this remarkable deposit.
Colour:Black, dark brown
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Extremely common
Confirmation
Validity:Believed Valid
References
References:Dunham K C, Geology of the Northern Pennine Orefield , Vol 1, Tyne to Stainmore. HMSO
Associated Minerals Based on Photo Data:
Quartz15 photos of Sphalerite associated with Quartz at this locality.
Ankerite12 photos of Sphalerite associated with Ankerite at this locality.
Calcite10 photos of Sphalerite associated with Calcite at this locality.
Galena8 photos of Sphalerite associated with Galena at this locality.
Brianyoungite7 photos of Sphalerite associated with Brianyoungite at this locality.
Dolomite3 photos of Sphalerite associated with Dolomite at this locality.
Hydrozincite2 photos of Sphalerite associated with Hydrozincite at this locality.
Pyrite2 photos of Sphalerite associated with Pyrite at this locality.
Fluorite1 photo of Sphalerite associated with Fluorite at this locality.
Sulphur1 photo of Sphalerite associated with Sulphur at this locality.
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Smallcleugh Mine, Nenthead, Alston Moor District, Cumbria, England, UK
Nearest other occurrences of Sphalerite
0.4km (0.2 miles) A Carrs Mine, Nenthead, Alston Moor District, Cumbria, England, UK
0.5km (0.3 miles) B Middlecleugh Upper Level, Nenthead, Alston Moor District, Cumbria, England, UK
0.8km (0.5 miles) C Rampgill Mine, Nenthead, Alston Moor District, Cumbria, England, UK
0.9km (0.5 miles) D Capelcleugh Mine, Nenthead, Alston Moor District, Cumbria, England, UK
2.1km (1.3 miles) E Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, Cumbria, England, UK
2.1km (1.3 miles) F Gudhamgill Mine, Nenthead, Alston Moor District, Cumbria, England, UK
2.5km (1.5 miles) G Coalcleugh Mine, Coalcleugh, West Allendale, North Pennines, Northumberland, England, UK
3.0km (1.8 miles) H Nentsberry Haggs Mine, Nent Valley, Alston Moor District, Cumbria, England, UK
3.5km (2.2 miles) I Wellhopehead Mine, West Allendale, North Pennines, Northumberland, England, UK
3.7km (2.3 miles) J Wellhope Shaft dumps, West Allendale, North Pennines, Northumberland, England, UK
3.8km (2.4 miles) K Park Level, Killhope, Weardale, North Pennines, Co. Durham, England, UK
4.0km (2.5 miles) L Barneycraig Mine, Coalcleugh, West Allendale, North Pennines, Northumberland, England, UK
4.2km (2.6 miles) M Scraithole Mine, Carrshield, West Allendale, North Pennines, Northumberland, England, UK
4.5km (2.8 miles) N Wellheads Hush, Weardale Forest, Weardale, North Pennines, Co. Durham, England, UK
5.1km (3.2 miles) O Swinhope Moor, East Allendale, North Pennines, Northumberland, England, UK
5.1km (3.2 miles) P Tynebottom Mine, Garrigill, South Tynedale, Alston Moor District, Cumbria, England, UK
5.8km (3.6 miles) Q Tynehead Mine, Garrigill, South Tynedale, Alston Moor District, Cumbria, England, UK
6.3km (3.9 miles) R Blagill Mine, Nent Valley, Alston Moor District, Cumbria, England, UK
6.3km (3.9 miles) S Heartycleugh Mine, Carrshield, West Allendale, North Pennines, Northumberland, England, UK
7.1km (4.4 miles) T Burtree Slits, Cowshill, Weardale, North Pennines, Co. Durham, England, UK
7.4km (4.6 miles) U Burtree Pasture Mine (Breckonsyke Mine; Broadmea Mine), Cowshill, Weardale, North Pennines, Co. Durham, England, UK
7.6km (4.7 miles) V Allenheads Mine (Beaumont Mine), East Allendale, North Pennines, Northumberland, England, UK
7.9km (4.9 miles) W Calvert Mine, South Tynedale, Alston Moor District, Cumbria, England, UK
8.6km (5.3 miles) X St Peter's Mine, Sparty Lea, East Allendale, North Pennines, Northumberland, England, UK
8.7km (5.4 miles) Y Ladys Rake Mine, Harwood, Teesdale, North Pennines, Co. Durham, England, UK
8.8km (5.5 miles) Z Rotherhope Fell Mine (Rodderup Fell Mine), Black Burn Area, Alston Moor District, Cumbria, England, UK
8.9km (5.5 miles) 0 Blackdene Mine, Ireshopeburn, Weardale, North Pennines, Co. Durham, England, UK
9.1km (5.6 miles) 1 Ayle Burn Vein, South Tynedale, Alston Moor District, North Pennines, Northumberland, England, UK
9.4km (5.8 miles) 2 Metalband Mine, Upper Teesdale, Cumbria, England, UK
9.4km (5.8 miles) 3 Willyhole Mine, Harwood, Teesdale, North Pennines, Co. Durham, England, UK
9.6km (5.9 miles) 4 Teeside Mine, Upper Teesdale, Cumbria, England, UK
10.0km (6.2 miles) 5 Cashwell Mine, Eastern Cross Fell, Alston Moor District, Cumbria, England, UK
10.1km (6.3 miles) 6 Greenhurth Mine, Cowgreen area, Teesdale, North Pennines, Co. Durham, England, UK
10.2km (6.3 miles) 7 Old Middlehope Mine, Ireshopeburn, Weardale, North Pennines, Co. Durham, England, UK
10.3km (6.4 miles) 8 Frazer's Hush Mine, Rookhope District, Weardale, North Pennines, Co. Durham, England, UK
10.5km (6.5 miles) 9 Nether Hearth Mine, Upper Teesdale, Cumbria, England, UK
Mineral and/or Locality  
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