BGS mineralogy and petrology collection record

Sample number	E15941; COLLNOTG175;
Sample Donor	Jones,T.G.
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Sub variolitic dolerite.
Locality details	Crags to W. of Porth Maen Welyn, Pen Caer.
50k map sheet	St. Davids (209) View images in GeoScenic related to 'St. Davids' View a geological map near 'St. Davids'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.