BGS mineralogy and petrology collection record
| Sample number | MR16391 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Phonolite. 'Original entry: Phonolite' |
| Stratigraphy | Not entered |
| Comments | phonolite, ,Collected by K C Dunham: |
| Locality details | Schelkopf, near Breuk,surface exposure,Germany |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1937 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |