| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Microgranite |
| Object Number | ABDUG Rock.7725 |
| Brief Description | Porphyritic, with orthoclase phenocrysts; S |
| Place Key | 330 yards downstream from junction of Burn of Loupshiel with the South Esk. Lochnagar Mass, South Esk, Angus, Scotland |
| Aquisition Source | I. McDonald, SS7 |
| Aquisition Date | 01/01/1970 |