BGS mineralogy and petrology collection record

Sample number	E10932; COLLNO13;
Sample Donor	Matley, C.A
Rock name	'Original entry: Quartzite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey p 309 Broken up Quartzite band. Epiclastic but locally Blastopsammitic. Broken up Qurtz band in slaty beds Mona Complex
Locality details	Coast N. of Penrhyn Mawr 1" NW. of Gadlys
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 283 839
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.