BGS mineralogy and petrology collection record

Sample number	E48506; COLLNOLA508;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Basic intrusion
Locality details	440 yds 16 deg of Maes yr Eglwys Wen
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7411 2467
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.