BGS mineralogy and petrology collection record

Sample number	MR9492
Sample Donor	Not entered
Rock name	Ash (Tephra). 'Original entry: Ash'
Stratigraphy	Wenlock. Builth Mudstones Formation.
Comments	Ash,Builth Volcanic Group,Ordovician,Collected byTG Jones J895
Locality details	disused quarry S of Tan-y-Graig Cottage, Llanewedd, Builth,
50k map sheet	Builth (196) View images in GeoScenic related to 'Builth' View a geological map near 'Builth'
Map reference
Year collected	1932
Bore name	Not applicable
Confidentiality	No restrictions