BGS mineralogy and petrology collection record
| Sample number | E20857; COLLNORB1758; |
|---|---|
| Sample Donor | Road Research Laboratory |
| Rock name | Trachytic-Rock. 'Original entry: Quartz Keratophyre' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Llanelwedd Qry. 1 ml NE of Builth Wells |
| 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
E20857
