BGS mineralogy and petrology collection record
| Sample number | MR8149; F1334; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Porphyritoid' |
| Stratigraphy | Not entered |
| Comments | porphyritoid, ,Collected by F Krantz (Bonn):20 |
| Locality details | Tydanmaanvuori, Teisko, Tammenfors,surface exposure,Finland |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1931 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |