BGS mineralogy and petrology collection record

Sample number	E11072; COLLNO153;
Sample Donor	Matley, C.A
Rock name	'Original entry: Grit. Fine Quartz Grit.'
Stratigraphy	Not entered
Comments	Mona Complex. Church Bay Tuff. See Mem.Geol.of Anglesey. pp.288:463. Locality ??..?. Horizon uncertain, but characters as those of ordovician grit. With angular fragments.
Locality details	Near Hen-dy
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 305 914
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.