Complex zoning in pyroxene phenocryst. Basaltic lava flow in the Hansen Point Rift Volcanics, N Ellesmere Island #HALIP #ThinSectionThursday http://pic.twitter.com/UYevu5wpiO
— M.-C. Williamson (@mc_north) August 31, 2017
via Twitter https://twitter.com/mc_north
September 01, 2017 at 01:16AM
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