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Description: | A fragment of granite which measures (59mm x 43mm x 24mm). The specimen has coarse crystals including white feldspar crystals up to 8mm in size. The individual crystals are angular in shape. Biotite and muscovite mica crystals can be seen and measure up to 5mm in size. A lot of grey quartz makes up the specimen up to 6mm. The underside of the specimen is heavily weathered to a darker colour. The specimen was an unnamed intrusion collected from McMoab, Galloway Forest Park, Dumfries and Galloway, Scotland (grid ref NX 488 713) and is Late Silurian to Early Devonian in age. Specimen collected on 12/04/2010. AR/CB
A fragment of granite from Dumfries and Galloway, Scotland which is approximately 416 million years old | License: | http://creativecommons.org/licenses/by/2.0/uk/ | Publisher: | Dudley Museums Service | Rights holder: | Dudley Museums Service | Subjects: | Geology | Temporal: | Silurian - Upper - Devonian - Lower | Source: | Black Country History | Identifier: | http://www.blackcountryhistory.org/colle... | Go to resource |
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