BGS mineralogy and petrology collection record
| Sample number | MR17666; F7132; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Porphyry' |
| Stratigraphy | Not entered |
| Comments | porphyry, ,:738 |
| Locality details | Marathonisi,surface exposure,polished specimen,Greece |
| 50k map sheet | Not entered |
| Map reference | 37:41,20:53 |
| Year collected | 1942 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |