BGS mineralogy and petrology collection record

Sample number	E67020; COLLNOCL/LAG5V;
Sample Donor	Pratt, W.
Rock name	'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Acid tuff; Arthog Formation
Locality details	1030 m at 244 deg from SW End of Llyn Pen Moel (Lake)aun Oer
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View the geology near 'Barmouth'
Map reference	SH 6581 1515
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.