BGS mineralogy and petrology collection record
| Sample number | MR21809; F6562; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Porphyry. 'Original entry: Motley Porphyry' |
| Stratigraphy | Not entered |
| Comments | Motley porphyry, Younger Intrusive Series,: |
| Locality details | Large dyke, about 5 miles N of Jos, Nigeria,surface exposure,Large polished specimen. See Bull Geol Surv Nig. No 19 "Geology of the Plateau Tinfields",Nigeria |
| 50k map sheet | Not entered |
| Map reference | 9:59,8:53 |
| Year collected | 1958 |
| Bore name | Not applicable |
| Confidentiality | No restrictions |