BGS mineralogy and petrology collection record

Sample number	E46544; MR32885; COLLNOSG181;
Sample Donor	Strong,G.E.
Rock name	Not entered
Stratigraphy	Bryn-Glas Formation
Comments	Upper Ordovician, Ashgillian Brynglass Mst. with gritty nodules
Locality details	Pencerrigtewion, 1.05 km 48 deg from Llyn Llygad Rheidol
50k map sheet	Aberystwyth (163) View images in GeoScenic related to 'Aberystwyth' View a geological map near 'Aberystwyth'
Map reference	SN 8000 8834
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.