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Cowgreen Mine, Cowgreen area, Teesdale, North Pennines, Co. Durham, England, UK

UK Grid Reference: NY811306
Latitude: 54°40'12"N
Longitude: 2°17'35"W
Group of barytes mines which were flooded (not obliterated) by the construction of the Cowgreen Reservoir in the 1960s.
Veins worked worked at the main mine were the large Winterhush, Greenhush and Isabella veins. These were exploited in superficial earlier workings. Later development was by way of the Wrentnall Shaft (NY81053053) started by the Hedworth Barium Co., and by this company's principal level (grid ref. supplied). The main period of working commenced in 1935 under the Anglo-Austral Mining Co., who deepened the shaft and drove levels both north and south of it at various horizons down to, and including the Whin Sill.
The sandy shale (whetstone) adjacent to the Whin Sill has been albitised and lime-silicates have developed in argillaceous parts of the limestone.

Mineral List

Ankerite
Baryte
Diopside
Fluorite
Galena
Grossular
Millerite
Vesuvianite


8 entries listed. 8 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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