BGS mineralogy and petrology collection record

Sample number	E9823; COLLNO35;
Sample Donor	Greenly,E.
Rock name	'Original entry: Compact Halleflintesque Grit'
Stratigraphy	Not entered
Comments	See Anglesey Memoir p.355. Mona Complex. Tyfry Beds.
Locality details	Craggy boss 600ft. NW.of stream arrow head-SW.Ty-fry
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 514 766
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.