BGS mineralogy and petrology collection record
| Sample number | MR7742 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Diorite. 'Original entry: Diorite' |
| Stratigraphy | Proterozoic. |
| Comments | Diorite,Pre-Cambrian?,Collected byTG Jones J19 |
| Locality details | Knaveston,1 mile E of Brawdy, |
| 50k map sheet | St. Davids (209) |
| Map reference | Not entered |
| Year collected | 1931 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |