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New Brancepeth Colliery (Sleetburn Colliery), Deerness Valley, Durham Coalfield, Co. Durham, England, UK

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Latitude & Longitude (WGS84): 54° 46' 19'' North , 1° 39' 11'' West
Latitude & Longitude (decimal): 54.77222,-1.65306
UK National Grid Reference:NZ223420
Köppen climate type:Cfb : Temperate oceanic climate


Probably the best known of the barium deposits of the coalfield, being described as early as 1900.
Two workable deposits were found, the eastern one being worked for barytes between 1904 and 1921 and then re-opened in 1940.
The western deposit came into production in 1938 and most of the subsequent barium mineral production came from this area. Reported production until closure in 1955 was 221,659 tons, of which only a few percent was of witherite.

Mineral List


12 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Moscovian - Westphalian
307 - 315 Ma



ID: 2036046
Pennine Middle Coal Measures Formation And South Wales Middle Coal Measures Formation (Undifferentiated)

Age: Pennsylvanian (307 - 315 Ma)

Lithology: Mudstone, siltstone, sandstone, coal, ironstone and ferricrete

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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References

Spencer, L.J. (1910) On the occurrence of alstonite and ullmannite (a species new to Britain) in a barytes-witherite vein at the New Brancepeth Colliery Near Durham. Mineralogical Magazine, vol. 15, n° 71, 302-311.

Russell, A. (1927) Notice of an occurrence of niccolite and ullmannite at the Settlingstones mine, Fourstones, Northumberland; and of serpierite at Ross Island mine, Killarney, Co. Kerry, Ireland. Mineralogical Magazine, vol. 21, n° 119, 383-387. (referring to Spencer, 1910).

Smythe, J.A. (1947) Chemical analysis of ullmannite from New Brancepeth, Co. Durham. Mineralogical Magazine, vol. 28, n° 198, 173-174.

Mineral and/or Locality  
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