BGS mineralogy and petrology collection record

Sample number	E47470; COLLNOLA407;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Dyke rock in Arenig
Locality details	280 yds 8 deg from Pont Blaen Lliw
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 8014 3369
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.