BGS mineralogy and petrology collection record

Sample number	E14423; COLLNOLP245;
Sample Donor	Matley, C.A
Rock name	Tuff. 'Original entry: Silicified Tuff'
Stratigraphy	Not entered
Comments	Chert rock below crystal tuff
Locality details	Cadwgan Rhiw
50k map sheet	Pwllheli (134) View images in GeoScenic related to 'Pwllheli' View a geological map near 'Pwllheli'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.