BGS mineralogy and petrology collection record
| Sample number | E23143; COLLNOBN6; |
|---|---|
| Sample Donor | Bisson,G. |
| Rock name | 'Original entry: Metamorphosed Shale With Tourmaline And Wollastonite' |
| Stratigraphy | Not entered |
| Comments | Possibly dyke or alteration of culm measures. 341 Ft. Fr. West Portal. |
| Locality details | Prewley Tunnel, 3.44 miles SW. of Okehampton. |
| 50k map sheet | Okehampton (324) |
| Map reference | SX 550 908 |
| 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
E23143
