BGS mineralogy and petrology collection record

Sample number	E63217; COLLNOKB217;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Quartz Latite Ash Flow Tuff'
Stratigraphy	Not entered
Comments	Overlies thin mudstone of Conwy Rhyolite Fm.(GROUP= Llewelyn Volcanic Group)(FORM= Foel Fras Volcanic Complex)(MEMB= .)(IE=E)(TEXTURE=
Locality details	Foel Lwyd
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 7181 7248
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.