| P number: | P527856 |
|---|---|
| Caption: | Limestone from Richmond Quarry, Dufftown, Banffshire. |
| Description: | A grey crystalline limestone belonging to the Sandend Group of the Dalradian Supergroup (Precambrian) age and from the Richmond Quarry, Dufftown, Banffshire. BGS Sample SL 239. British Geological Survey Petrology Collection sample number MC 7632. The limestone is composed of closely twinned interlocking and often sutured grains of calcite, about 1.5 mm across, and subordinate quartz forming not more than 5 per cent, except in small pockets. The quarry was formerly worked for agricultural lime and later as a source for roadstone. On analysis (S.L. 239) it showed: calcium carbonate, 82.75 per cent, magnesium carbonate, 8.33 per cent, insoluble residue 7.98 per cent. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 239.98 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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