BGS mineralogy and petrology collection record
| Sample number | MR20616 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | , ,Collected by T C F Hall:135 |
| Locality details | Valley between Tong Chang and Ur Pi Ryong,surface exposure,in crush zone,North Korea |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1956 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |