BGS mineralogy and petrology collection record

Sample number	E10621; COLLNO22;
Sample Donor	Blake,Professor
Rock name	'Original entry: Mica Schist Blastopsammitic'
Stratigraphy	Not entered
Comments	see mem.geology of Anglesey Yr 1919 cf p 280-1 Quartz, Albite, Micas, Epidote etc Fragments of Hyperbyssal rocks Mona Complex New Harbour Beds
Locality details	N. of river Alaw Llanfaban
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 31 82
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.