BGS mineralogy and petrology collection record

Sample number	E9840; COLLNO52;
Sample Donor	Greenly,E.
Rock name	'Original entry: Fine Gritty Mudstone'
Stratigraphy	Not entered
Comments	See Anglesey Memoir p.356. Mona Complex. Tyfry Beds.
Locality details	At bedding 425ft. NW. Bryn Mawr
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 516 773
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.