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Description: | A fragment of granite with phenocrysts, which measures (78mm x 56mm x 52mm). The specimen is a porphyritic granite with coarse crystals up to 5mm, and orthoclase feldspar phenocrysts up to (65mm x 38mm x 11mm). The specimen was subject to two stage cooling. The feldspars show excellent cleavage. AR/CB
A fragment of granite with phenocrysts from ?Dartmoor | License: | http://creativecommons.org/licenses/by/2.0/uk/ | Publisher: | Dudley Museums Service | Rights holder: | Dudley Museums Service | Subjects: | Geology JPB Collection | Temporal: | Unknown | Source: | Black Country History | Identifier: | http://www.blackcountryhistory.org/colle... | Go to resource |
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