BGS mineralogy and petrology collection record
| Sample number | E21696; COLLNO3; |
|---|---|
| Sample Donor | Woodland,A.W. |
| Rock name | 'Original entry: Chalybite Mudstone' |
| Stratigraphy | Not entered |
| Comments | Siderite mudstone with cf. Tomaculum Problematicum. 6-7" above top of No. 9A seam. (Amman Marine Band). |
| Locality details | Llanharan Colliery. No. 10 seam. Returns of No. 1. Conway. 45 chains W. at 4 deg. S. of centre of North pit. |
| 50k map sheet | Pontypridd (248) |
| Map reference | SS 991 826 |
| 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
E21696
