BGS mineralogy and petrology collection record
| Sample number | S39503 |
|---|---|
| Sample Donor | Macgregor,A.G. |
| Rock name | 'Original entry: Fine-Grained Biotite Tonalite' |
| Stratigraphy | Not entered |
| Comments | Vein of fine-grained biotite tonalite up to 18 in wide; 11 yds W of J. 104 |
| Locality details | Rudha an t-Sabhail, 1050 ft W from granite (tronalite) contact |
| 50k map sheet | Tobermory (52) |
| Map reference | NM 7709 5990 |
| 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
S39503
