BGS mineralogy and petrology collection record

Sample number	E10670; COLLNO71;
Sample Donor	Blake,Professor
Rock name	'Original entry: Mica Schist'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesy p 343 Similar components Holycrystalline Palaeozoic Peru Zone
Locality details	Gwalchmai toll gate [1" cross roads at 'L-R']
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.