BGS mineralogy and petrology collection record
| Sample number | MR5190 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Andesite, Porphyritic. 'Original entry: Porphyrite (Altered Andesite)' |
| Stratigraphy | Not entered |
| Comments | porphyrite (altered andesite), ,Collected by B. St�rtz (Bonn):183 |
| Locality details | Ilfeld, Harz,surface exposure,Germany |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1939 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |