BGS mineralogy and petrology collection record
| Sample number | E63109; COLLNOKB109; |
|---|---|
| Sample Donor | Not entered |
| Rock name | Rhyolite. 'Original entry: Rhyolite' |
| Stratigraphy | Not entered |
| Comments | Immediately below Bedded Pyroclastic Fm.(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE= |
| Locality details | Cwm Idwal/Twll du |
| 50k map sheet | Bangor (106) |
| Map reference | SH 6420 5870 |
| 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
E63109
