I bet that plagioclase antecryst has quite a tale to tell! Palaeogene dolerite dyke from Glenloig, Arran. @arrangeopark #ThinSectionThursday pic.twitter.com/xeiJmBpgfU
— Bob Gooday (@BobGooday) February 1, 2018
via Twitter https://twitter.com/BobGooday
February 01, 2018 at 03:39PM
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