BGS mineralogy and petrology collection record

Sample number	E11051; COLLNO132;
Sample Donor	Matley, C.A
Rock name	'Original entry: Albitic Dolerite.'
Stratigraphy	Not entered
Comments	Palaeozoic Intrusions. See Mem.Geol.of Anglesey.p.531. Similar: hypophitic. Some secondary amphibole. Fault dyke. Altered coarse granular dolerite.
Locality details	West coast of Porty-y-Nant
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 295 912
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.