BGS mineralogy and petrology collection record

Sample number	E54441; COLLNOFU13;
Sample Donor	Fletcher, Chris J.N
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Amygdaloidal dolerite dyke.
Locality details	200 m. at 300 deg. from summit of Cilgwyn.
50k map sheet	Nefyn (118) View images in GeoScenic related to 'Nefyn' View the geology near 'Nefyn'
Map reference	SJ -503 5437
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions