P number: | P528132 |
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Caption: | Muscovite mica split, trimmed and graded as A1 from the Loch Nevis Mica Prospect, Knoydart, Invernessshire. |
Description: | The muscovite from Sgurr Coire nan Gobhar in Knoydart situated about 1.5 miles north-north-west of Kylesknoydart and 300 yards south-east from Loch Coir an Lochan was processed at the Pitlochry Sorting Factory. British Geological Survey Petrology Collection sample number MC 7740. A ruby mica of excellent quality, clarity and size. The latter is eight by nine inches in dimension. The Knoydart deposit was the chief source of mica during the Second World War Knoydart. Production was rock quarried, 3,606 tons; crude mica produced, 74,606 lbs.; crude mica yield, 20.69 lbs./ton. |
Date taken: | 25/06/1905 |
Photographer: | Unknown |
Copyright statement: | Unknown |
Orientation: | Landscape |
Size: | 204.11 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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