BGS mineralogy and petrology collection record

Sample number	E50238; COLLNOC509;
Sample Donor	Collins,G.H.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Devonian sandstone.
Locality details	Ball Bottom Quarry, Twitchen.
50k map sheet	Barnstaple (293) View images in GeoScenic related to 'Barnstaple' View a geological map near 'Barnstaple'
Map reference	SS 782 307
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.