BGS mineralogy and petrology collection record
| Sample number | E18106; COLLNOM223; |
|---|---|
| Sample Donor | Matley, C.A |
| Rock name | Greisen. 'Original entry: Greisen' |
| Stratigraphy | Not entered |
| Comments | Massive Ringers ass. with Greenstone |
| Locality details | E of River Mawddash. Opp. Plas Tyddyngwlady |
| 50k map sheet | Harlech (135) |
| 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
E18106
