BGS mineralogy and petrology collection record
| Sample number | E1550 |
|---|---|
| Sample Donor | Geikie,A. |
| Rock name | 'Original entry: Calc-Chlorite Schist' |
| Stratigraphy | Not entered |
| Comments | In chlorite schists |
| Locality details | S.side of Porth tywyn mawr 4m. NE.of Holyhead |
| 50k map sheet | Holyhead (93) |
| Map reference | SH 283 850 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |