BGS mineralogy and petrology collection record
| Sample number | E23883; COLLNOBN27; |
|---|---|
| Sample Donor | Bisson,G. |
| Rock name | 'Original entry: Contact Altered Dolerite (Clay Minerals Diopside Sphene Rock)' |
| Stratigraphy | Not entered |
| Comments | Surface outcrop or large boulder. |
| Locality details | Prewley Tunnel. |
| 50k map sheet | Okehampton (324) |
| Map reference | SX 554 911 |
| 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
E23883
