BGS mineralogy and petrology collection record
| Sample number | S4901 |
|---|---|
| Sample Donor | Geikie,A.; Peach, B.N.; |
| Rock name | 'Original entry: Trachyte (Probably) F' |
| Stratigraphy | Not entered |
| Comments | Silicified mica-porphyrite H |
| Locality details | Castlelaw, S face, 300 ft N of Castleknowe, Pentland Hills |
| 50k map sheet | Edinburgh (32) |
| Map reference | NT 2300 6427 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
S4901
