BGS mineralogy and petrology collection record
| Sample number | S40320 |
|---|---|
| Sample Donor | Road Research Laboratory |
| Rock name | 'Original entry: Biotite-Hornblende Porphyrite' |
| Stratigraphy | Not entered |
| Comments | Road Research Laboratory (Derby Ring Road experiment, July 1953); see Sheet 38, Shira - Clachan tunnel |
| Locality details | Furnace Quarry (52) |
| 50k map sheet | Inverarray (37) |
| Map reference | NN 0280 0010 |
| 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
S40320
