BGS mineralogy and petrology collection record

Sample number	E63231; COLLNOKB231;
Sample Donor	Not entered
Rock name	Tuff. 'Original entry: Hyaloclastite'
Stratigraphy	Not entered
Comments	(GROUP= )(FORM= Dolgarrog Volcanic Fm.)(MEMB= .)(IE=E)(TEXTURE=Fine grained
Locality details	Afon Porthlwyd
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 7880 6720
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.