P number: | P519729 |
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Caption: | Specimen of quartz dolerite from Goat Quarry, Fifeshire, Scotland |
Description: | The image shows part of a polished slab of quartz dolerite, used as a decorative cladding. The specimen is of Carboniferous age. British Geological Survey Petrology Collection sample number EMC 5702. The rock is a basic igneous rock containing very little quartz. It is relatively fine-grained which makes it difficult to identify the mineral constituents without a hand lens. Petrology is the correct term for the study of rocks. A petrologist will often make use of a microscope when the rock is fine-grained. A small specimen of the rock is ground down until it becomes wafer-thin, and is then mounted onto a glass slide. The resultant 'thin section' is then placed under the microscope and the constituent minerals can be identified. |
Date taken: | Wed Jan 01 00:00:00 GMT 2003 |
Photographer: | Bain, T.S. |
Copyright statement: | NERC |
Orientation: | Landscape |
Size: | 216.20 KB; 1000 x 775 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
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