| P number: | P527652 |
|---|---|
| Caption: | Pegmatite with potash feldspar from the River Mashie, Invernessshire. |
| Description: | A dyke-like body of red pegmatite about 10 feet wide occurs in a low cliff on the River Mashie, 1,350 yards south by west of the Kinlochlaggan-Newtonmore road. British Geological Survey Petrology Collection sample number MC 7432. Large crystals of pink feldspar with a little quartz and muscovite occur in the pegmatite. The Dalradian (Precambrian) rocks of south-eastern Invernessshire are injected by numerous veins, sheets and dykes of granitic and pegmatitic material. In particular the granite pegmatites consisting of essentially large crystals of pink feldspar were investigated as a source of feldspar in the Newtonmore, Loch Laggan, Dalwhinnie area. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 208.92 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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