BGS mineralogy and petrology collection record

Sample number	E66198; COLLNOWPR47;
Sample Donor	Pratt, W.
Rock name	Tuff. 'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Basic tuff or lava ?
Locality details	200 m. E. of Cum Pen Llydan.
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View a geological map near 'Barmouth'
Map reference	SH 6455 1288
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.