BGS mineralogy and petrology collection record
| Sample number | E972; MR11647; |
|---|---|
| Sample Donor | Museum Specimens |
| Rock name | Felsite. 'Original entry: Quartz Porphyry' |
| Stratigraphy | Not entered |
| Comments | Not entered |
| Locality details | Lower Grenofen Quarry, near Tavistock. |
| 50k map sheet | Dartmoor Forest (338) |
| Map reference | SX 489 710 |
| 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
E972
