BGS mineralogy and petrology collection record

Sample number	E10669; COLLNO70;
Sample Donor	Blake,Professor
Rock name	'Original entry: Mica Schist Most Quartzose'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesy pp 342-3 Similar components finer than E10668 suggest proxim of Hornfels Palaeozoic Peru Zone
Locality details	Gwalchami: further W. than E 10668
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 38 76
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.