| P number: | P552906 |
|---|---|
| Caption: | Tingwall Limestone. Girlsta Quarry, near shore of Wadbister Voe. Shetland Isles. |
| Description: | The rock is composed of interlocking grains of calcite 0.5 mm across, which show glide twinning and a little peripheral granulation. Quartz is abundant, about 5-10 per cent by volume, in small grains, and occurs also as larger grains in quartz-clinochlore aggregates. Muscovite is in places a subordinate mineral and elsewhere is only accessory. Pyrite is accessory. Limestone with quartz, chlorite and muscovite, medium-grained, granoblastic, foliated. SL0187. Britrocks S34951. 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: | 320.49 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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