BGS mineralogy and petrology collection record

Sample number	E47501; COLLNOMH692;
Sample Donor	Howells,M.F.
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Intrusive, (?) feldspar rock
Locality details	Quarry, S Llangynnog Mine
50k map sheet	Bala (136) View images in GeoScenic related to 'Bala' View the geology near 'Bala'
Map reference	SJ 0527 2561
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.