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Description: | A fragment of granite which measures (86mm x 47mm x 15mm). The specimen has coarse black mica crystals up to 6mm x 3mm in size. The individual crystals are angular in shape. A lot of grey quartz makes up the specimen. White feldspar also forms a considerable proportion of this specimen. The one side of the specimen is weathered and displays a green colouration. A patch of weathered mica is visible on the fresh face which measures 10mm x 9mm. The specimen was collected from McMoab, Galloway Forest Park, Dumfries and Galloway, Scotland (grid ref NX 488 713) and is Silurian to 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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