BGS mineralogy and petrology collection record

Sample number	E61605; COLLNOMH1519;
Sample Donor	Howells,M.F.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Acid tuff with small clasts
Locality details	Gwernan Valley
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View a geological map near 'Barmouth'
Map reference	SN 6904 1148
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.