BGS mineralogy and petrology collection record

Sample number	E63551; COLLNOKB551;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy	Not entered
Comments	(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= Moel Ddu Tuffs (unit 2).)(IE=E)(TEXTURE=Welded, foliated
Locality details	Oerddwr isaf, Moel Ddu
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 5842 4524
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.