| P number: | P527969 |
|---|---|
| Caption: | Photomicrograph of limestone. Light: XPL. Magnification: x2.5. Rebeg Quarry, Inverness, Invernessshire, Scotland. |
| Description: | Coarse, flaggy banded white and grey crystalline limestone. This specimen is Moine (Precambrian) in age. BGS sample number SL 107. British Geological Survey Petrology Collection sample number S 34586. Photomicrograph details: Light: XPL, Magnification: x2.5. Large grains of twinned calcite are closely interlocked and tend to be elongated parallel to the foliation. Small quartz grains and muscovite flakes are scattered sparsely through the calcite. In bands there is a considerable concentration of tremolite, patched by crocidolite, and phlogopite which are orientated with their long axes parallel to the plane of foliation. Grains of oxidized iron ore and trains of limonitic material occur; there are many small grains of yellow pyrite, and acute lozenges of sphene are accessory. In summary a limestone with phlogopite and tremolite, with a coarse-grained, foliated, and grano-schistose texture. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 389.64 KB; 1000 x 663 pixels; 85 x 56 mm (print at 300 DPI); 265 x 175 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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