BGS mineralogy and petrology collection record

Sample number	E61618; COLLNOMH1532;
Sample Donor	Howells,M.F.
Rock name	Tuff.
Stratigraphy	Not entered
Comments	Acid tuff
Locality details	NW of Llynnau Cregennan
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View the geology near 'Barmouth'
Map reference	SN 6528 1147
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.