BGS mineralogy and petrology collection record
| Sample number | MR7045; F635; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Porphyry' |
| Stratigraphy | Not entered |
| Comments | porphyry, ,Collected by W C Brvgger:74 |
| Locality details | Nakholmen, Kristianiafjord,surface exposure,W C Brvgger's Type rock specimens,Norway |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1890 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |