BGS mineralogy and petrology collection record

Sample number	MR22431
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 Old Qry. in field. 150 yd E of Ty'n y Bont
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 394 753
Year collected	1959
Bore name	Not applicable
Confidentiality	No restrictions