BGS mineralogy and petrology collection record

Sample number	E63662; COLLNOKB662;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	15m above base(GROUP= Nantmor Group)(FORM= Pitts Head Tuff Fm.)(MEMB= Lower Flow Unit.)(IE=E)(TEXTURE=Welded
Locality details	Cwmystradllyn
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 5594 4577
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.