BGS mineralogy and petrology collection record
| Sample number | MR20590 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Igneous-Rock (Undifferentiated). |
| Stratigraphy | Not entered |
| Comments | , ,Collected by T C F Hall:57 |
| Locality details | N of Tong Chang,surface exposure,North Korea |
| 50k map sheet | Not entered |
| Map reference | 38:46,125:30 |
| Year collected | 1956 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |