BGS mineralogy and petrology collection record

Sample number	E63869; COLLNOKB869;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Basic Tuff'
Stratigraphy	Not entered
Comments	Geochem traverse, see KB870(GROUP= Snowdon Volcanic Group)(FORM= Bedded Pyroclastic Fm.)(MEMB= .)(IE=E)(TEXTURE=Chloritised
Locality details	Cwm Llan
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6244 5228
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.