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 a geological map 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.