BGS mineralogy and petrology collection record
| Sample number | E19231; COLLNO1; |
|---|---|
| Sample Donor | Road Research Laboratory |
| Rock name | 'Original entry: Silicified Porphyritic Felsite' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Berwyn Granite Qry. Llangynog |
| 50k map sheet | Bala (136) |
| 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
E19231
