BGS mineralogy and petrology collection record

Sample number	E50431; COLLNOLB457;
Sample Donor	Jackson,A.A
Rock name	'Original entry: Mudstone'
Stratigraphy	Not entered
Comments	Mudstone; Llanbedr Formation
Locality details	570 m 204 deg from Ty Cerrig
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 6902 3315
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.