| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Porphyry |
| Object Number | ABDUG Rock.5588 |
| Brief Description | Quartz-porphyry, composite sill |
| Place Key | East Bennan Farm, N. of Bennan Head, Arran, Bute, Scotland |
| Aquisition Source | Geol. Dept., Leeds Univ. |
| Aquisition Date | 01/01/1964 |