BGS mineralogy and petrology collection record

Sample number	E50581; COLLNOMH856;
Sample Donor	Howells,M.F.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Tuff
Locality details	Afon Nant Peris. 0.5 km NW of Pont y Gromlech
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6256 5680
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.