BGS mineralogy and petrology collection record

Sample number	E10629; COLLNO30;
Sample Donor	Blake,Professor
Rock name	'Original entry: Gwna Green Schist'
Stratigraphy	Not entered
Comments	see mem.geology of Anglesey Yr 1919 cf p 283 cf E11069 Quartz, Albite, Chlorite etc. Autoclastic?.? Passing into green Schist?..? A???Albite Mona Complex Gwna Beds
Locality details	Llourhyddlad [?Llanrhwydrys]
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 325 932
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.