BGS mineralogy and petrology collection record

Sample number	E10620; COLLNO21;
Sample Donor	Blake,Professor
Rock name	'Original entry: Pebbly Feldspar Grit'
Stratigraphy	Not entered
Comments	see mem.geology of Anglesey Yr 1919 cf p 280-1 Albite , Epidote, Quartz, etc Fragments of hyperbyssal and rocks Rc?? To the Skerries Grits Mona Complex Skerr
Locality details	N. of rive Alaw
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 31 82
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.