BGS mineralogy and petrology collection record

Sample number	E67621; COLLNOGW585;
Sample Donor	Woodhall, D.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Banded rhyolite, Builth Volc. Fmn.
Locality details	Between Gilwem Hill and Cumbrith Farm
50k map sheet	Knighton (180) View images in GeoScenic related to 'Knighton' View the geology near 'Knighton'
Map reference	SO 0981 5980
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.