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 the geology 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.