BGS mineralogy and petrology collection record
| Sample number | MR17664 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Porphyry' |
| Stratigraphy | Not entered |
| Comments | porphyry, ,:739 |
| Locality details | Djebel Dokham,surface exposure,polished specimen,Egypt |
| 50k map sheet | Not entered |
| Map reference | 27:59,32:23 |
| Year collected | 1942 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |