BGS mineralogy and petrology collection record

Sample number	E50428; COLLNOLB454;
Sample Donor	Jackson,A.A
Rock name	'Original entry: Sandstone'
Stratigraphy	Not entered
Comments	Allt Lwyd Formation; feldspathic Sst.
Locality details	220 m 352 deg from Allt Lwyd
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7969 2912
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.