BGS mineralogy and petrology collection record

Sample number	E48482; COLLNOLA484;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Intrusive
Locality details	660 yds 237 deg from Cefn Mailau
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7325 1850
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.