BGS mineralogy and petrology collection record

Sample number	E52329; COLLNOLB569;
Sample Donor	Jackson,A.A
Rock name	'Original entry: Tuff Rhyolite'
Stratigraphy	Not entered
Comments	Acid tuff or rhyolite
Locality details	510 m 249 deg from Pont Fronwydd
50k map sheet	Bala (136) View images in GeoScenic related to 'Bala' View the geology near 'Bala'
Map reference	SH 8267 2439
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.