| P number: | P528127 |
|---|---|
| Caption: | Muscovite mica split, trimmed and graded as 'No. 3', 'white' from the Little Scatwell mica prospect, eight miles from Strathpeffer, Ross and Cromarty. |
| Description: | A number of specimens of 'No. 3', 'stained' muscovite mica from the Little Scatwell mica prospect, eight miles from Strathpeffer, Ross and Cromarty. British Geological Survey Petrology Collection sample number MC 7735. The No. 3 indicates specimens with a surface area of 10-15 square inches and the 'staining' refers to imperfections in clarity, usually dark shadowy internal markings. Processing, which usually consisted of rough cobbing, splitting the mica books with a knife into thin sheets and trimming the edges to remove imperfections and finally grading was undertaken at the Pitlochry Sorting Factory during World War Two. |
| Date taken: | 25/06/1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 281.94 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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