BGS mineralogy and petrology collection record

Sample number	E18060; COLLNOM191;
Sample Donor	Matley, C.A
Rock name	Siltstone (Undifferentiated). 'Original entry: Sandy Siltstone'
Stratigraphy	Not entered
Comments	(25" map-36/6) Barmouth Grit with patings
Locality details	Porkington Qry. Barmouth
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View a geological map near 'Barmouth'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.