BGS mineralogy and petrology collection record

Sample number	MR22409
Sample Donor	Chaperlin,K.
Rock name	'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Dolerite Dyke. NGR as in register.
Locality details	Quarry name: not recorded: at Gwyndy old Qry. 4.5 ml NW of Llangefni
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 396 796
Year collected	1959
Bore name	Not applicable
Confidentiality	No restrictions