BGS mineralogy and petrology collection record
| Sample number | MR9295 |
|---|---|
| Sample Donor | Not entered |
| Rock name | Sandstone (Undifferentiated). 'Original entry: Flagstone' |
| Stratigraphy | Not entered |
| Comments | Flagstone,Portmadoc Flags,Collected byTG Jones J698 |
| Locality details | disused quarry behind wharves at Portmadoc, |
| 50k map sheet | Snowdon (119) |
| Map reference | |
| Year collected | 1932 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |