BGS mineralogy and petrology collection record

Sample number	E61433; COLLNOGW43;
Sample Donor	Woodhall, D.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Porphyritic basalt or andesite, Builth Volc. Gp.
Locality details	280 m 57 deg from Ty Gwyn (Farm), Llandrindod Wells
50k map sheet	Rhayader (179) View images in GeoScenic related to 'Rhayader' View the geology near 'Rhayader'
Map reference	SO 0748 5910
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.