| P number: | P552421 |
|---|---|
| Caption: | Blair Atholl Limestone. Quarry north of White Bridge, 3.5 miles south by east of Tummel Bridge Perth. |
| Description: | Bluish-grey schistose limestone of fine grain with abundant quartz and mica. Schistosity is marked by the elongation of closely twinned calcite and the attitude of mica flakes, and quartz, alkali-feldspar and white mica are concentrated in lenticles parallel to this direction. The calcite grains reach 3 mm in length by 0.8 mm width. The feldspar is turbid and is probably albite. Some pyrite, a little sphene and apatite and possibly graphite are also present. Limestone with quartz, alkali-feldspar and muscovite, coarse-grained, granoschistose, foliated. SL0004. Britrocks S34430. Magnification x40. Light PPL. |
| Date taken: | Wed Jan 21 00:00:00 GMT 2004 |
| Photographer: | Sutherland, A. |
| Copyright statement: | NERC |
| Additional information: | Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956. |
| Orientation: | Landscape |
| Size: | 324.80 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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