| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Porphyry |
| Object Number | ABDUG Rock.6768 |
| Brief Description | Quartz porphyry in contact with limestone; S |
| Place Key | Glen Tilt, Perthshire, Scotland |
| Aquisition Source | J.Wood. No.35 |
| Aquisition Date | 01/01/1965 |