BGS mineralogy and petrology collection record

Sample number	E48948; COLLNONGB193;
Sample Donor	Berridge,N.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Massive weakly cleaved porphyritic ?andesite
Locality details	1840 m 283 deg from Foel Fras summit
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6788 6859
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.