BGS mineralogy and petrology collection record

Sample number	E16601; COLLNOA159;
Sample Donor	Reynolds, Professor
Rock name	Ash (Tephra). 'Original entry: Rhyolite Ash'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Between W end of Mynydd Gader and Llyn Gwernan
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View a geological map near 'Barmouth'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.