BGS mineralogy and petrology collection record

Sample number	E45886; COLLNOLA257;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Rhyolite'
Stratigraphy	Not entered
Comments	? Rhyolite
Locality details	Track 30 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 7494 2152
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.