BGS mineralogy and petrology collection record
| Sample number | N3091 |
|---|---|
| Sample Donor | Krabbendam, Dr Maarten |
| Rock name | Not entered |
| Stratigraphy | Not entered |
| Comments | Highly altered porphyritic felsite. Fine groundmass, highly altered, with sericite, feldspar, carbonate and some quarts. Phenocrysts: - round quartz, - feldspar replaced by sericite, carbonate, - pseudomorphs (after biotite?) of chlorite. |
| Locality details | Long How |
| 50k map sheet | Glen Shee (56W) |
| Map reference | NO 1878 7126 |
| 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
N3091
