BGS mineralogy and petrology collection record

Sample number	E10871; COLLNO272;
Sample Donor	Blake,Professor
Rock name	'Original entry: Granite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey p 331 Quartz, Alkali feldspars & a little Biotite Coedana Granite Mona Complex Plutonic Intrusions
Locality details	9th Milstone Llangwyllog Railway
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 44 78
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.