BGS mineralogy and petrology collection record
| Sample number | MR25031; COLLNOC1077; |
|---|---|
| Sample Donor | Collins,G.H. |
| Rock name | 'Original entry: Slate' |
| Stratigraphy | Ordovician. Ordovician. |
| Comments | Grey slate.. NGR as in register. |
| Locality details | Tyrch Quarry, 500yds at W55degN of Pentre-Glas & 4ml. WSW of St.Brynach's Church, Llanfyrnch |
| 50k map sheet | Fishguard (210) |
| Map reference | SN 157 297 |
| Year collected | 1961 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |