BGS mineralogy and petrology collection record
| Sample number | MR4868 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Obsidian. 'Original entry: Obsidian' |
| Stratigraphy | Not entered |
| Comments | obsidian, ,Purchase from Butler: |
| Locality details | Forgio Vecchio,surface exposure,Italy |
| 50k map sheet | Not entered |
| Map reference | 38:29,14:56 |
| Year collected | 1820 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |