BGS mineralogy and petrology collection record

Sample number	E45887; COLLNOLA258;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Extrusive
Locality details	Track 120 yds SW of Pen y Ffridd
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7489 2148
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.