BGS mineralogy and petrology collection record

Sample number	E38123; MR31824; COLLNO22;
Sample Donor	Gritstone Project
Rock name	Wacke. 'Original entry: Greywacke'
Stratigraphy	Not entered
Comments	Sandstone. (Wenlock) Silurian. Used as part of 1970's Roadstone Project
Locality details	Bwlch Gwyn Quarry, 2.75 miles NE. of Pentre Foelas.
50k map sheet	Corwen (120) View images in GeoScenic related to 'Corwen' View a geological map near 'Corwen'
Map reference	SH 900 548
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.