BGS mineralogy and petrology collection record

Sample number	E10741; COLLNO142;
Sample Donor	Blake,Professor
Rock name	'Original entry: Mica-Schist With Felsite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey pp 334-5 Quartz Alkali-feldspar White Mica
Locality details	S. of Tracth Dules
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 484 881
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.