BGS mineralogy and petrology collection record
| Sample number | E4023; COLLNO4; |
|---|---|
| Sample Donor | Usher,W.A.E. |
| Rock name | 'Original entry: Altered Greenstone' |
| Stratigraphy | Not entered |
| Comments | Much biotite, by contact alteration, some original hornblende. |
| Locality details | New quarry, W. of Trevarrick Terrace. |
| 50k map sheet | Bodmin (347) |
| Map reference | |
| 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
E4023
