BGS mineralogy and petrology collection record

Sample number	E61962; COLLNOMH1563;
Sample Donor	Howells,M.F.
Rock name	Rhyolite.
Stratigraphy	Not entered
Comments	Blue, fine grained acid tuff, foliated
Locality details	N of Mynydd Pencoed
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View a geological map near 'Barmouth'
Map reference	SN 6966 1124
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.