BGS mineralogy and petrology collection record

Sample number	E11052; COLLNO133;
Sample Donor	Matley, C.A
Rock name	'Original entry: Albitic Dolerite.Dolerite.'
Stratigraphy	Not entered
Comments	Palaeozoic Intrusions. See Mem.Geol.of Anglesey.p.531. One generation feldspar. Abundant biotite. Amygdules. Intrusive mass.
Locality details	W.of Mynydd-y-Garn, near Aelwyd-Uchaf
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 313 905
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.