BGS mineralogy and petrology collection record
| Sample number | MR7583 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Pitchstone, Porphyritic-Ryhyolitic. 'Original entry: Porphyritic Pitchstone' |
| Stratigraphy | Not entered |
| Comments | porphyritic pitchstone, ,Collected by F H Butler: |
| Locality details | Hill above Cala, Pantelleria,surface exposure,Italy |
| 50k map sheet | Not entered |
| Map reference | Not entered |
| Year collected | 1875 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |