Coarse Diorite from Lochnagar, Aberdeenshire. Diorite is an intrusive igneous rock that contains a mixture of feldspar, pyroxene, hornblende and sometimes quartz.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aberdeenshire, archival, archive, coarse, diorite, feldspar, historical, history, hornblende, igneous, ingneous, intrusive, lochnagar, pyroxene, quartz, rock, scotland, stone