BGS mineralogy and petrology collection record
| Sample number | E71761; COLLNODMA121; |
|---|---|
| Sample Donor | Millward, D. |
| Rock name | Porphyry. |
| Stratigraphy | Not entered |
| Comments | Quartz-feldspar porphyry dyke. Sample No. DMA 121. |
| Locality details | S.E. Haweswater, upper reaches Guerness. |
| 50k map sheet | Appleby (30) |
| Map reference | NY 4910 1308 |
| Year collected | 1997 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |