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 the geology near 'Builth'
Map reference
Year collected	1932
Bore name	Not applicable
Confidentiality	No restrictions