BGS mineralogy and petrology collection record
| Sample number | MR21852; COLLNOC681; |
|---|---|
| Sample Donor | Collins,G.H. |
| Rock name | 'Original entry: Grey Slate' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Era Slate Works 500yds N6degE of Esgair-Geiliog station |
| 50k map sheet | Barmouth (149) |
| Map reference | SH 759 063 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |