BGS mineralogy and petrology collection record

Sample number	E64259; COLLNOKB1259;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	Near base of lowest unit(GROUP= Snowdon Volcanic Group)(FORM= Upper Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Well bedded
Locality details	Crib y ddysgl
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View a geological map near 'Snowdon'
Map reference	SH 6101 5510
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.