BGS mineralogy and petrology collection record
| Sample number | MR8221 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Andesite. 'Original entry: Mica-Andesite' |
| Stratigraphy | Not entered |
| Comments | mica-andesite, ,Collected by B St�ntz (Bonn):190 |
| Locality details | Gei'sberg, Siebengebirge,surface exposure,Germany |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1931 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |