Haven’t posted a #ThinSectionThursday for a while 😔 so I’ll share one of my latest obsessions: silica-undersaturated rocks! A haüyne tephrite with extra-blue haüyne phenocrysts 💙🔬 (4X, scale bar 0.5 mm) pic.twitter.com/2s5geUR30B
— Lapilli (@Lapilli_55) June 27, 2019
via Twitter https://twitter.com/Lapilli_55
June 28, 2019 at 01:50AM
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