BGS mineralogy and petrology collection record
| Sample number | MR6730; F3311; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Trachyte. 'Original entry: Trachyte (Dark)' |
| Stratigraphy | Not entered |
| Comments | trachyte (dark), ,Collected by F. Schwalm (Baden):red26 |
| Locality details | Laacher See,surface exposure,See ledger for reference to analysis,Germany |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1932 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |