BGS mineralogy and petrology collection record

Sample number	E14458; COLLNORB1198;
Sample Donor	Dewey,H.
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Helygog Qry. Brithdir
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View a geological map near 'Harlech'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.