P number: | P527896 |
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Caption: | Feldspar-quartz-mica pegmatite, Knoydart, Invernessshire. |
Description: | A feldspar-quartz-mica pegmatite from the Loch Nevis mica prospect in Knoydart. The prospect is situated on the north side of Loch Nevis, 1100 yards south 12 degrees east of the summit of Sgurr Coire nan Gobhar, 7.5 miles due east of Mallaig. British Geological Survey Petrology Collection sample number MC 7672. The pink mineral is the orthoclase feldspar, the grey glassy mineral the quartz and the flat flaky mineral is the muscovite mica. This locality was worked for mica during the Second World War. 'Books' of mica were extracted up to two feet in diameter and sent to Pitlochry for processing for electrical components. |
Date taken: | 25/06/1905 |
Photographer: | Unknown |
Copyright statement: | Unknown |
Orientation: | Landscape |
Size: | 152.15 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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