BGS mineralogy and petrology collection record

Sample number	E49876; COLLNONEQ3208;
Sample Donor	Berridge,N.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Laminated micaceous Sst. Visean - Midd. Lst. Gp. Nattrass Gill Tlazle. ? Metamorphosed.
Locality details	Chainage 18 m in South Wear Drive of the Wear Tees Tunnel, Keilder Water Scheme
50k map sheet	Wolsingham (26) View images in GeoScenic related to 'Wolsingham' View the geology near 'Wolsingham'
Map reference	NZ 009 333
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.