| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Porphyry |
| Object Number | ABDUG Rock.6591 |
| Brief Description | Quartz porphyry with xenoliths; S |
| Place Key | Carn an Tuirc, Aberdeen, Scotland |
| Aquisition Source | G. Riddler, No. G440 |
| Aquisition Date | 01/01/1967 |