| P number: | P528141 |
|---|---|
| Caption: | Muscovite mica split, trimmed and graded as 'No. 5', 'dotted green' from the Loch Nevis Mica Prospect, Knoydart, Invernessshire. |
| Description: | Several specimens of No. 5, dotted green muscovite mica from the Loch Nevis Mica Prospect, Knoydart, Invernessshire and processed at the Pitlochry Sorting Factory. British Geological Survey Petrology Collection sample number MC 7749. No. 5 mica has sheets between 3 and 6 square inches. The colour is graded as green type but the actual grade of green is not given. It is 'dotted' or spotted, i.e. it contains inclusions of various metallic oxides such as magnetite, haematite, limonite etc. The Loch Nevis Mica Prospect was the most extensive and valuable deposit of mica in Scotland. Output from the quarry was processed at the sorting factory at Pitlochry. |
| Date taken: | 25/06/1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 302.83 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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