BGS mineralogy and petrology collection record

Sample number	E63155; COLLNOKB155;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Quartz Latite Ash Flow Tuff'
Stratigraphy	Not entered
Comments	Immediately below clast rich tuff. 5m above KB154(GROUP= Llewelyn Volcanic Group)(FORM= Foel Fras Volcanic Complex)(MEMB= .)(IE=E)(TEXTURE=
Locality details	Isgolion Duon-Nant Fach
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6770 6360
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.