I've posted some of these before, but I feel they will cheer up a rainy London #ThinSectionThursday - beautiful clinopyroxene phenocrysts in a basalt from the Peel Lake area, #NewZealand pic.twitter.com/PCQPtmAteB
— Dr Ruth Siddall (@R_Siddall) November 1, 2018
via Twitter https://twitter.com/R_Siddall
November 01, 2018 at 05:52PM
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