BGS mineralogy and petrology collection record

Sample number	E38342; MR31860;
Sample Donor	Hart,F.; Oldershaw,D.;
Rock name	Sandstone (Undifferentiated). 'Original entry: Orthoquartzite'
Stratigraphy	Not entered
Comments	Coarse grained grit. Basal Millstone Grit Used as part of 1970's Roadstone Project
Locality details	Pen Rhiw Wen (higher), Disused Qry. on A4069. 2.5 ml NNE of Brynamman
50k map sheet	Ammanford (230) View images in GeoScenic related to 'Ammanford' View a geological map near 'Ammanford'
Map reference	SN 727 182
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.