BGS mineralogy and petrology collection record

Sample number	E4211; COLLNOHDC76; NEG1582M; NEG172M;
Sample Donor	H.D.C
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Diabase'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Central Wales Granite Qry. Llandrindod
50k map sheet	Rhayader (179) View images in GeoScenic related to 'Rhayader' View a geological map near 'Rhayader'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.