BGS mineralogy and petrology collection record
| Sample number | MR6597 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Andesite, Porphyritic. 'Original entry: Porphyrite' |
| Stratigraphy | Not entered |
| Comments | porphyrite, ,Collected by B St|rtz (Bonn):252 |
| Locality details | Tyveholmen, Christiania,surface exposure,Norway |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 2169 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |