BGS mineralogy and petrology collection record
| Sample number | E17536; COLLNORB1546; |
|---|---|
| Sample Donor | Road Board |
| Rock name | Tuff. 'Original entry: Keratophyric Tuff' |
| Stratigraphy | Not entered |
| Comments | Middle bed |
| Locality details | Llanwrtyd Qry. Llanwrtyd |
| 50k map sheet | Builth (196) |
| Map reference | |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
E17536
