BGS mineralogy and petrology collection record
| Sample number | S13639 |
|---|---|
| Sample Donor | Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above) |
| Rock name | 'Original entry: Porphyritic Rock Like Vogesite Near Margin Of Kentallenite' |
| Stratigraphy | Not entered |
| Comments | Balnahard kentallenite mass: Peculiar glomeratic structure; Colonsay Mem, p. 33 |
| Locality details | Balnahard, Colonsay |
| 50k map sheet | Colonsay (35) |
| Map reference | NR 4136 9923 |
| 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
S13639
