BGS mineralogy and petrology collection record
| Sample number | MR21351 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Gravel. 'Original entry: Flint Gravel' |
| Stratigraphy | Not entered |
| Comments | Flint Gravel,Aggregate,Collected byRoad Research Lab. |
| Locality details | Quarry,Colney Heath Pit, colney Heath, |
| 50k map sheet | Hertford (239) |
| Map reference | TL 199 058 |
| Year collected | 1957 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |