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 a geological map 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.